MASS LIMITS FOR NEUTRAL HIGGS BOSONS IN EXTENDED HIGGS MODELS

This Section covers models which do not fit into either the Standard Model or its simplest minimal Supersymmetric extension (MSSM), leading to anomalous production rates, or nonstandard final states and branching ratios. In particular, this Section covers limits which may apply to generic two-Higgs-doublet models (2HDM), or to special regions of the MSSM parameter space where decays to invisible particles or to photon pairs are dominant (see the review on “Status of Higgs Boson Physics''). Concerning the mass limits for ${{\mathit H}^{0}}$ and ${{\mathit A}^{0}}$ listed below, see the footnotes or the comment lines for details on the nature of the models to which the limits apply.
The observed signal at about 125 GeV, see section “${{\mathit H}}$'', can be interpreted as one of the neutral Higgs bosons of an extended Higgs sector.

Other Mass Limits

INSPIRE   JSON  (beta) PDGID:
S055H2O
We use a symbol ${{\mathit H}_{{{1}}}^{0}}$ if mass $<$ 125 GeV or ${{\mathit H}_{{{2}}}^{0}}$ if mass $>$ 125 GeV. The notation ${{\mathit H}}$ is reserved for the 125 GeV particle.

VALUE (GeV) CL% DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
1
HAYRAPETYAN
2025A
 CMS ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
2
AAD
2024A
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
3
AAD
2024AP
 ATLS ${{\mathit H}_{{{2}}}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
4
AAD
2024BQ
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
5
AAD
2024BV
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
6
AAD
2024BW
 ATLS ${{\mathit H}_{{{3}}}^{0}}$ $\rightarrow$ ${{\mathit H}_{{{2}}}^{0}}{{\mathit H}}$
7
AAD
2024BX
 ATLS ${{\mathit H}_{{{4}}}^{0}}$ $\rightarrow$ ${{\mathit H}_{{{2}}}^{0}}{{\mathit H}_{{{3}}}^{0}}$
8
AAD
2024BX
 ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit H}_{{{2}}}^{0}}{{\mathit Z}}$
9
AAD
2024CA
 ATLS ${{\mathit H}_{{{3}}}^{0}}$ $\rightarrow$ ${{\mathit H}_{{{{1,2}}}}^{0}}{{\mathit H}}$
10
AAD
2024CD
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}}$
11
AAD
2024CF
 ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$
12
AAD
2024CI
 ATLS ${{\mathit H}_{{{2}}}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ invisible
13
AAD
2024CK
 ATLS two doublet + pseudoscalar + Dirac DM
14
AAD
2024H
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
15
AAD
2024K
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$
16
ADACHI
2024F
 BEL2 ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
17
HAYRAPETYAN
2024AA
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
18
HAYRAPETYAN
2024AE
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
19
HAYRAPETYAN
2024AF
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
20
HAYRAPETYAN
2024AI
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit H}_{{{1}}}^{0}}$, long-lived
21
HAYRAPETYAN
2024AJ
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
22
HAYRAPETYAN
2024AZ
 CMS ${{\mathit A}^{0}}{{\mathit A}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
23
HAYRAPETYAN
2024AZ
 CMS ${{\mathit H}}$, ${{\mathit H}_{{{{1,2}}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
24
HAYRAPETYAN
2024I
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$
25
TUMASYAN
2024A
 CMS ${{\mathit H}_{{{{1,2}}}}^{0}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$, ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$, ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$
26
TUMASYAN
2024B
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
27
TUMASYAN
2024B
 CMS ${{\mathit H}_{{{3}}}^{0}}$ $\rightarrow$ ${{\mathit H}_{{{{1,2}}}}^{0}}{{\mathit H}}$
28
AAD
2023AD
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
29
AAD
2023AD
 ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}{{\mathit H}}$
30
AAD
2023AJ
 ATLS ${{\mathit H}^{\pm}}$ $\rightarrow$ ${{\mathit W}^{\pm}}{{\mathit A}^{0}}$
31
AAD
2023BD
 ATLS ${{\mathit t}}$ $\rightarrow$ ${{\mathit q}}{{\mathit H}_{{{{1,2}}}}^{0}}$
32
AAD
2023BE
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$
33
AAD
2023BG
 ATLS ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit H}_{{{2}}}^{0}}/{{\mathit A}^{0}}$
34
AAD
2023BW
 ATLS ${{\mathit A}^{0}}{{\mathit t}}{{\overline{\mathit t}}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
35
AAD
2023BX
 ATLS ${{\mathit H}}$ + invisible ${{\mathit A}^{0}}$
36
AAD
2023CA
 ATLS ${{\mathit H}_{{{3}}}^{0}}$ $\rightarrow$ ${{\mathit H}_{{{2}}}^{0}}{{\mathit H}}$
37
AAD
2023CR
 ATLS flavor changing ${{\mathit H}_{{{2}}}^{0}}$
38
AAD
2023O
 ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}$
39
AAD
2023R
 ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
40
AAD
2023U
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
41
AAD
2023Z
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
42
HAYRAPETYAN
2023C
 CMS ${{\mathit H}_{{{{1,2}}}}^{0}}$ $\rightarrow$ ${{\mathit e}}{{\mathit \mu}}$
43
HAYRAPETYAN
2023G
 CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
44
TUMASYAN
2023
CMS ${{\mathit H}_{{{3}}}^{0}}$ $\rightarrow$ ${{\mathit H}_{{{{1,2}}}}^{0}}{{\mathit H}}$
45
TUMASYAN
2023M
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
46
TUMASYAN
2023O
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
47
TUMASYAN
2023S
 CMS ${{\mathit H}_{{{{1,2}}}}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$
48
AAD
2022A
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
49
AAD
2022D
 ATLS ${{\mathit Z}}{{\mathit A}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ invisible
50
AAD
2022F
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
51
AAD
2022I
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{{2}}}^{0}}{{\widetilde{\mathit \chi}}_{{{1}}}^{0}}$ , ${{\widetilde{\mathit \chi}}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\widetilde{\mathit \chi}}_{{{1}}}^{0}}$ , ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$
52
AAD
2022J
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$
53
AAD
2022J
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ , ${{\mathit H}_{{{1}}}^{0}}{{\mathit H}_{{{1}}}^{0}}$
54
AAD
2022P
 ATLS ${{\mathit H}_{{{1}}}^{0}}$ , ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ invisible
55
AAD
2022Y
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
56
ABRATENKO
2022A
 MCBN ${{\mathit K}^{+}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit \pi}^{+}}$
57
TUMASYAN
2022AK
 CMS ${{\mathit H}_{{{3}}}^{0}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit H}_{{{1}}}^{0}}$
58
TUMASYAN
2022D
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$
59
AAD
2021AF
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$
60
AAD
2021AI
 ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}_{{{2}}}^{0}}$
61
AAD
2021AY
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
62
AAD
2021AZ
 ATLS ${{\mathit A}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit A}_{{{1}}}^{0}}$
63
AAD
2021BB
 ATLS ${{\mathit A}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit A}_{{{1}}}^{0}}$
64
AAD
2021BE
 ATLS ${{\mathit A}_{{{1}}}^{0}}$ $\rightarrow$ invisible
65
ABRATENKO
2021
MCBN ${{\mathit K}^{+}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit \pi}^{+}}$
66
SIRUNYAN
2021A
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ invisible
67
TUMASYAN
2021F
 CMS ${{\mathit H}_{{{3}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}_{{{1,2}}}^{0}}$
68
AAD
2020AA
 ATLS ${{\mathit H}_{{{2}}}^{0}}/{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$
69
AAD
2020AI
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
70
AAD
2020AO
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
71
AAD
2020C
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
72
AAD
2020L
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$
73
AAD
2020X
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
74
AAIJ
2020AL
 LHCB ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
75
SIRUNYAN
2020
CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
76
SIRUNYAN
2020AA
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$ or ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}_{{{2}}}^{0}}$
77
SIRUNYAN
2020AC
 CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}$
78
SIRUNYAN
2020AD
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \mu}}{{\mathit \tau}}$ , ${{\mathit e}}{{\mathit \tau}}$
79
SIRUNYAN
2020AF
 CMS ${{\mathit H}_{{{2}}}^{0}}/{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
80
SIRUNYAN
2020AP
 CMS ${{\mathit H}}$, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
81
SIRUNYAN
2020Y
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$
82
SIRUNYAN
2020Z
 CMS ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit H}_{{{{1,2}}}}^{0}}$ or ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit A}^{0}}$, ${{\mathit H}_{{{{1,2}}}}^{0}}$/ ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$, ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
83
AABOUD
2019A
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
84
AABOUD
2019AG
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
85
AABOUD
2019O
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
86
AABOUD
2019T
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
87
AABOUD
2019V
 ATLS two doublet + pseudoscalar model
88
AABOUD
2019Y
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
89
AALTONEN
2019
CDF ${{\mathit H}_{{{{1,2}}}}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$
90
SIRUNYAN
2019
CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
91
SIRUNYAN
2019AE
 CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$
92
SIRUNYAN
2019AN
 CMS ${{\mathit A}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit A}_{{{1}}}^{0}}$
93
SIRUNYAN
2019AV
 CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}$
94
SIRUNYAN
2019B
 CMS ${{\mathit H}_{{{1,2}}}^{0}}$ $/$ ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$
95
SIRUNYAN
2019BB
 CMS ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
96
SIRUNYAN
2019BD
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
97
SIRUNYAN
2019BE
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
98
SIRUNYAN
2019BQ
 CMS ${{\mathit H}_{{{{1,2}}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
99
SIRUNYAN
2019CR
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $/$ ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
100
SIRUNYAN
2019H
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
101
AABOUD
2018AA
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
102
AABOUD
2018AG
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
103
AABOUD
2018AH
 ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}_{{{2}}}^{0}}$
104
AABOUD
2018AI
 ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}$
105
AABOUD
2018BF
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$
106
AABOUD
2018BU
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
107
AABOUD
2018BX
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
108
AABOUD
2018CQ
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
109
AABOUD
2018F
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$, ${{\mathit Z}}{{\mathit Z}}$
110
AAIJ
2018AM
 LHCB ${{\mathit H}_{{{{1,2}}}}^{0}}$ $\rightarrow$ ${{\mathit \mu}}{{\mathit \tau}}$
111
AAIJ
2018AQ
 LHCB ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
112
AAIJ
2018AQ
 LHCB ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
113
SIRUNYAN
2018AF
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
114
SIRUNYAN
2018BA
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$
115
SIRUNYAN
2018CW
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
116
SIRUNYAN
2018DK
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
117
SIRUNYAN
2018DT
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
118
SIRUNYAN
2018DU
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
119
SIRUNYAN
2018ED
 CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}$
120
SIRUNYAN
2018EE
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
121
SIRUNYAN
2018F
 CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
122
AABOUD
2017
ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
123
AABOUD
2017AP
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
124
AABOUD
2017AW
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
125
KHACHATRYAN
2017AZ
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
126
KHACHATRYAN
2017D
 CMS ${{\mathit p}}{{\mathit p}}$, 8, 13 TeV, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
127
KHACHATRYAN
2017R
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
128
SIRUNYAN
2017CN
 CMS ${{\mathit p}}{{\mathit p}}$, 8 TeV, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
129
SIRUNYAN
2017Y
 CMS ${{\mathit p}}{{\mathit p}}$, 8, 13 TeV, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
130
AABOUD
2016AB
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
131
AABOUD
2016AE
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$, ${{\mathit Z}}{{\mathit Z}}$
132
AABOUD
2016H
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
133
AABOUD
2016I
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
134
AAD
2016AX
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$
135
AAD
2016C
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$
136
AAD
2016L
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
137
AAD
2016L
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
138
AALTONEN
2016C
 CDF ${{\mathit H}_{{{1}}}^{0}}$ ${{\mathit H}^{\pm}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit H}_{{{1}}}^{0}}{{\mathit W}^{*}}$, ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
139
KHACHATRYAN
2016BG
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
140
KHACHATRYAN
2016BQ
 CMS ${{\mathit p}}{{\mathit p}}$, 8 TeV, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
141
KHACHATRYAN
2016F
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}}{{\mathit H}_{{{1}}}}$
142
KHACHATRYAN
2016M
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
143
KHACHATRYAN
2016P
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
144
KHACHATRYAN
2016P
 CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}$
145
AAD
2015BK
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
146
AAD
2015BZ
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
147
AAD
2015BZ
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
148
AAD
2015CE
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
149
AAD
2015H
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
150
AAD
2015S
 ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}$
151
KHACHATRYAN
2015AW
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$, ${{\mathit Z}}{{\mathit Z}}$
152
KHACHATRYAN
2015BB
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
153
KHACHATRYAN
2015N
 CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}$
154
KHACHATRYAN
2015O
 CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}$
155
KHACHATRYAN
2015R
 CMS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$
156
AAD
2014AP
 ATLS ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
157
AAD
2014M
 ATLS ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}^{\pm}}{{\mathit W}^{\mp}}$ $\rightarrow$ ${{\mathit H}}{{\mathit W}^{\pm}}{{\mathit W}^{\mp}}$, ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$
158
CHATRCHYAN
2014G
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}^{(*)}}$
159
KHACHATRYAN
2014P
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
160
AALTONEN
2013P
 CDF ${{\mathit H}^{'0}}$ $\rightarrow$ ${{\mathit H}^{\pm}}{{\mathit W}^{\mp}}$ $\rightarrow$ ${{\mathit H}}{{\mathit W}^{+}}{{\mathit W}^{-}}$
161
CHATRCHYAN
2013BJ
 CMS ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
162
AALTONEN
2011P
 CDF ${{\mathit t}}$ $\rightarrow$ ${{\mathit b}}{{\mathit H}^{+}}$, ${{\mathit H}^{+}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit A}^{0}}$
163
ABBIENDI
2010
OPAL ${{\mathit H}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{{1}}}^{0}}{{\widetilde{\mathit \chi}}_{{{2}}}^{0}}$
164
SCHAEL
2010
ALEP ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
165
ABAZOV
2009V
 D0 ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
$\text{none 3 - 63}$ 95 166
ABBIENDI
2005A
 OPAL ${{\mathit A}^{0}}$, Type II model
$>104$ 95 167
ABBIENDI
2004K
 OPAL ${{\mathit H}}$ $\rightarrow$ 2 jets
168
ABDALLAH
2004
DLPH ${{\mathit H}}{{\mathit V}}{{\mathit V}}$ couplings
$>110.3$ 95 169
ACHARD
2004B
 L3 ${{\mathit H}}$ $\rightarrow$ 2 jets
170
ACHARD
2004F
 L3 Anomalous coupling
171
ABBIENDI
2003F
 OPAL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}}{{\mathit Z}}$, ${{\mathit H}}$ $\rightarrow$ any
172
ABBIENDI
2003G
 OPAL ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
$>105.4$ 95 173, 174
HEISTER
2002L
 ALEP ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
$>109.1$ 95 175
HEISTER
2002M
 ALEP ${{\mathit H}}$ $\rightarrow$ 2 jets or ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$
$\text{none 12 - 56}$ 95 176
ABBIENDI
2001E
 OPAL ${{\mathit A}^{0}}$, Type-II model
177
ACCIARRI
2000R
 L3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}}{{\mathit \gamma}}$ and/or ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
178
ACCIARRI
2000R
 L3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit H}}$
179
GONZALEZ-GARC..
1998B
 RVUE Anomalous coupling
180
KRAWCZYK
1997
RVUE ($\mathit g-2)_{{{\mathit \mu}}}$
181
ALEXANDER
1996H
 OPAL ${{\mathit Z}}$ $\rightarrow$ ${{\mathit H}}{{\mathit \gamma}}$
1  HAYRAPETYAN 2025A search for the decay ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ in 132 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}$ = $70 - 110$ GeV.
2  AAD 2024A search for the decay ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$ with ${{\mathit Z}}$ decaying to ${{\mathit e}^{+}}{{\mathit e}^{-}}$ or ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ using 140 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 4 for limits on production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.22 - 3.4$ TeV.
3  AAD 2024AP search for production of a heavy ${{\mathit H}_{{{2}}}^{0}}$ or ${{\mathit A}^{0}}$ decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ in 140 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 15 and 16 for limits on the Yukawa coupling for ${\mathit m}_{{{\mathit A}^{0}}}$, ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.4 - 1.4$ TeV for different assumptions on width over mass.
4  AAD 2024BQ search for the decay chain ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$, produced by gluon fusion, vector boson fusion, or in association with a weak vector boson, in 140 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 10 for limits on the product of branching ratios in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $12 - 60$ GeV.
5  AAD 2024BV search for ${{\mathit H}_{{{2}}}^{0}}$ produced by vector-boson fusion, decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$, using 140 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8 for limits on the product of production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $1 - 5$ TeV.
6  AAD 2024BW search for production of ${{\mathit H}_{{{3}}}^{0}}$ decaying to ${{\mathit H}_{{{2}}}^{0}}{{\mathit H}}$, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$ or ${{\mathit Z}}{{\mathit Z}}$, and ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ using 140 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. $6 - 8$ for limits on production cross section times branching ratios in the ranges ${\mathit m}_{{{\mathit H}_{{{3}}}^{0}}}$ = $0.3 - 1.0$ TeV and ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.17 - 0.5$ TeV.
7  AAD 2024BX search for production of ${{\mathit H}_{{{4}}}^{0}}$ decaying to ${{\mathit H}_{{{2}}}^{0}}{{\mathit H}_{{{3}}}^{0}}$, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ invisible, and ${{\mathit H}_{{{3}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$ $\rightarrow$ 4 ${{\mathit \ell}}$, using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8 (a), (b) for limits on production cross section times branching ratios in the ranges ${\mathit m}_{{{\mathit H}_{{{4}}}^{0}}}$ = $0.39 - 1.3$ TeV, ${\mathit m}_{{{\mathit H}_{{{3}}}^{0}}}$ = $0.22 - 1.0$ TeV, and ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = 160 GeV.
8  AAD 2024BX search for production of ${{\mathit A}^{0}}$ decaying to ${{\mathit H}_{{{2}}}^{0}}{{\mathit Z}}$, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$, resulting in 4 ${{\mathit \ell}}$ final states, using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8 (c), (d) for limits on production cross section times branching ratios in the ranges ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.32 - 1.3$ TeV and ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.22 - 1.0$ TeV.
9  AAD 2024CA search for production of ${{\mathit H}_{{{3}}}^{0}}$ decaying to ${{\mathit H}_{{{{1,2}}}}^{0}}{{\mathit H}}$, ${{\mathit H}_{{{{1,2}}}}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$, and ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ using 140 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 4 for limits on production cross section times branching ratios in the ranges ${\mathit m}_{{{\mathit H}_{{{3}}}^{0}}}$ = $0.17 - 1.0$ TeV and ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ = $0.015 - 0.5$ TeV.
10  AAD 2024CD search for production of ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit Z}}{{\mathit A}}$, ${{\mathit A}}$ $\rightarrow$ invisible, using 140 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. $8 - 12$ for excluded parameter regions in two-Higgs-doublet plus singlet pseudoscalar model.
11  AAD 2024CF search for gluon-fusion production of ${{\mathit A}^{0}}$ decaying to ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 140 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on cross section times branching ratio in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $20 - 90$ GeV, and Fig. 8 for ${{\mathit A}^{0}}$ coupling with the top quark.
12  AAD 2024CI search for production of ${{\mathit H}_{{{2}}}^{0}}$, ${{\mathit A}^{0}}$ decaying to invisible final states, in various channels including ${{\mathit t}}{{\overline{\mathit t}}}$ + missing $\mathit E_{T}$ and ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit t}}{{\overline{\mathit t}}}$, using up to 140 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 3 for cross section limits in a simplified model with fixed Dark Matter mass and couplings to quarks and Dark Matter.
13  AAD 2024CK combines published ATLAS data up to 139 fb${}^{-1}$ to constrain two-Higgs-doublet plus singlet pseudoscalar model with ${{\mathit A}_{{{1}}}^{0}}$ decaying to invisibly into Dirac Dark Matter final states. See their Figs. $4 - 9$ for excluded parameter regions.
14  AAD 2024H combine searches for a scalar resonance decaying to ${{\mathit H}}{{\mathit H}}$ using up to 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV from AAD 2022F, AAD 2023Z, and AAD 2022Y. See their Fig. 1 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.251 - 5.0$ TeV.
15  AAD 2024K search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$ with ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ and ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. Merged ${{\mathit \gamma}}{{\mathit \gamma}}$ events as well as resolved ones are looked for. See their Fig. 3 for limits on the product of the branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.1 - 33$ GeV.
16  ADACHI 2024F search for ${{\mathit H}_{{{1}}}^{0}}$, which couples preferentially to muon pairs, in the process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ using 178 fb${}^{-1}$ of ${{\mathit e}^{+}}{{\mathit e}^{-}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 10.58 GeV. See their Fig. 13 (lower) for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}$ = $0.212 - 9.0$ GeV. Limits on the model parameter are given in Fig. 14 (lower).
17  HAYRAPETYAN 2024AA search for the decay chain ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$, produced in association with ${{\mathit W}^{\pm}}$ or ${{\mathit Z}}$, in 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 3 for limits on the product of branching ratios in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $15 - 60$ GeV.
18  HAYRAPETYAN 2024AE search for ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$ in the final state ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit W}^{+}}{{\mathit W}^{-}}$ using 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 19 (upper) for limit on the product of production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.25 - 0.9$ TeV.
19  HAYRAPETYAN 2024AF search for ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ in the final state ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ and ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 10, 11, and 12 for limits on the product of branching ratios in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $12 - 60$ GeV. Interpretation of the limits in terms of two Higgs doublet plus singlet models is given in their Figs. 13 and 14.
20  HAYRAPETYAN 2024AI search for ${{\mathit H}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit H}_{{{1}}}^{0}}$, with long-lived ${{\mathit H}_{{{1}}}^{0}}$ decaying in the muon detectors to ${{\mathit \gamma}}{{\mathit \gamma}}$, ${{\mathit e}^{+}}{{\mathit e}^{-}}$, ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$, ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, ${{\mathit K}^{+}}{{\mathit K}^{-}}$, ${{\mathit K}^{0}}{{\mathit K}^{0}}$, ${{\mathit d}}{{\overline{\mathit d}}}$, ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$, or ${{\mathit b}}{{\overline{\mathit b}}}$, using 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. $13 - 17$ for limits on B(${{\mathit H}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit H}_{{{1}}}^{0}}$) in the mass range between 0.4 and 55 GeV for each of the decay modes.
21  HAYRAPETYAN 2024AJ search for production of a scalar resonance decaying to ${{\mathit \gamma}}{{\mathit \gamma}}$ in 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 3 (right) for limits on production cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.6 - 5.0$ TeV, and Fig. 4 (lower) for their dependence on the width.
22  HAYRAPETYAN 2024AZ search for pair production of ${{\mathit A}^{0}}$ decaying to ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ using $101 - 137$ fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.21 - 60$ GeV.
23  HAYRAPETYAN 2024AZ search for ${{\mathit H}}$ or ${{\mathit H}_{{{{1,2}}}}^{0}}$ decaying to ${{\mathit A}^{0}}$ ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ using $101 - 137$ fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.5 - 2.7$ GeV and several choices of ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ in a NMSSM scenario.
24  HAYRAPETYAN 2024I search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$ with ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ and ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ in 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on the product of cross section times the branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $1 - 30$ GeV.
25  TUMASYAN 2024A search for production of ${{\mathit H}_{{{{1,2}}}}^{0}}$ in association with ${{\mathit W}}$, ${{\mathit Z}}$, or ${{\mathit t}}{{\overline{\mathit t}}}$, decaying to ${{\mathit e}^{+}}{{\mathit e}^{-}}$, ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$, or ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$, using 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 13 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ = $15 - 350$ GeV. See also Figs. 16 and 17 for limits on the mixing with the Standard Model Higgs boson.
26  TUMASYAN 2024B search for ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$ in the final state ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit b}}{{\overline{\mathit b}}}$ using 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 6 (upper) for limit on the product of production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.26 - 1.0$ TeV.
27  TUMASYAN 2024B search for production of ${{\mathit H}_{{{3}}}^{0}}$ decaying to ${{\mathit H}_{{{{1,2}}}}^{0}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \gamma}}{{\mathit \gamma}}$ using 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{3}}}^{0}}}$ = $0.3 - 1.0$ TeV and ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ = $0.09 - 0.8$ TeV.
28  AAD 2023AD search for associated production of ${{\mathit W}}/{{\mathit Z}}{{\mathit H}_{{{2}}}^{0}}$ with the decay chain ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 9 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $260 - 1000$ GeV.
29  AAD 2023AD search for gluon fusion production of ${{\mathit A}^{0}}$ with the decay chain ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}_{{{2}}}^{0}}$, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 10 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $350 - 800$ GeV and ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $260 - 400$ GeV.
30  AAD 2023AJ search for production of ${{\mathit H}^{\pm}}$ in association with a top quark, followed by ${{\mathit H}^{\pm}}$ $\rightarrow$ ${{\mathit W}^{\pm}}{{\mathit A}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ invisible, using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 10 for excluded parameter regions of 2HDM + $\mathit CP$-odd singlet model.
31  AAD 2023BD search for a top quark decaying to ${{\mathit q}}{{\mathit H}_{{{{1,2}}}}^{0}}$ (${{\mathit q}}$ = ${{\mathit u}}$, ${{\mathit c}}$), ${{\mathit H}_{{{{1,2}}}}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$, using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 9 for limits on production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ = $20 - 160$ GeV.
32  AAD 2023BE search for associated production of ${{\mathit H}_{{{2}}}^{0}}{{\mathit W}}$ and decay ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$ assuming the presence of higher dimensional ${{\mathit H}_{{{2}}}^{0}}{{\mathit W}^{+}}{{\mathit W}^{-}}$ interactions, using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 6 for excluded parameter region of higher dimensional operators, and Fig. 7 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.3 - 1.5$ TeV.
33  AAD 2023BG search for production of ${{\mathit H}_{{{2}}}^{0}}/{{\mathit A}^{0}}$ in association with a ${{\mathit t}}{{\overline{\mathit t}}}$ pair, decaying to ${{\mathit t}}{{\overline{\mathit t}}}$, using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.4 - 1.0$ TeV.
34  AAD 2023BW search for ${{\mathit A}^{0}}$ production in association with a ${{\mathit t}}{{\overline{\mathit t}}}$ pair, decaying to ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$, using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5(a) for limits on production cross section times branching ratio for ${\mathit m}_{{{\mathit A}^{0}}}$ = $15 - 72$ GeV.
35  AAD 2023BX search for production of ${{\mathit H}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ with missing transverse momentum using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8 for interpretation of the data in terms of 2HDM + a model.
36  AAD 2023CA search for production of ${{\mathit H}_{{{3}}}^{0}}$ decaying to ${{\mathit H}_{{{2}}}^{0}}{{\mathit H}}$, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$ or ${{\mathit Z}}{{\mathit Z}}$, and ${{\mathit H}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ using 140 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 4, 5 for limits on production cross section times branching ratios in the ranges ${\mathit m}_{{{\mathit H}_{{{3}}}^{0}}}$ = $0.5 - 1.5$ TeV and ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 0.5$ TeV.
37  AAD 2023CR search for ${{\mathit H}_{{{2}}}^{0}}$ having flavor-violating couplings to ${{\mathit t}}{{\mathit c}}$ or ${{\mathit t}}{{\mathit u}}$, produced in association with top quark(s), using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 14 for limits on production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 1.5$ TeV with various assumptions on the flavor-changing couplings.
38  AAD 2023O search for production of an ${{\mathit A}^{0}}$ in gluon-gluon fusion and in association with a ${{\mathit b}}{{\overline{\mathit b}}}$, decaying to ${{\mathit Z}}{{\mathit H}}$ in the final states ${{\mathit \nu}}{{\overline{\mathit \nu}}}{{\mathit b}}{{\overline{\mathit b}}}$ and ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 9 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.22 - 2.0$ TeV, and Fig. 11 for limits with both production components.
39  AAD 2023R search for the decay ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ in 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit A}^{0}}}$ = $10 - 70$ GeV.
40  AAD 2023U search for the decay ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$ with ${{\mathit Z}}$ decaying hadronically in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8(a) for limits on production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $1.0 - 6.8$ TeV.
41  AAD 2023Z search for the decay chain ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 10 for limits on the product of production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.251 - 1.6$ TeV.
42  HAYRAPETYAN 2023C search for ${{\mathit H}_{{{{1,2}}}}^{0}}$ $\rightarrow$ ${{\mathit e}}{{\mathit \mu}}$ using 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on production cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ = $110 - 160$ GeV.
43  HAYRAPETYAN 2023G search for dimuon resonance in the mass range $1.1 - 2.6$ or $4.2 - 7.9$ GeV in 96.6 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV, in inclusive and high ${{\mathit p}_{{{T}}}}$ selections. See their Fig. 5 for cross section times branching ratio limits and Fig. 7 for mixing angle limits in two Higgs doublet plus singlet model (at 90$\%$ CL).
44  TUMASYAN 2023 search for production of ${{\mathit H}_{{{3}}}^{0}}$ decaying to ${{\mathit H}_{{{{1,2}}}}^{0}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ using 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 4 for limits on production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{3}}}^{0}}}$ = $0.9 - 4.0$ TeV and ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ = $60 - 600$ GeV, and their interpretation in the NMSSM and the Two Real Singlet Model (TRSM).
45  TUMASYAN 2023M search for the decay chain ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \gamma}}$ in 132 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 6 for limits on cross section times branching ratio in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $15 - 62$ GeV.
46  TUMASYAN 2023O search for ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$, each ${{\mathit H}}$ decaying to either ${{\mathit W}}{{\mathit W}^{*}}$ or ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ using 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 14 (upper) for limit on the product of production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.25 - 1.0$ TeV.
47  TUMASYAN 2023S search for gluon fusion and ${{\mathit b}}$-associated production of ${{\mathit H}_{{{{1,2}}}}^{0}}$ decaying to ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ using 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 10 for limits on production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ = $0.06 - 3.5$ TeV.
48  AAD 2022A search for the decay chain ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 9 for limits on the overall branching fraction in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $16 - 62$ GeV. See also Fig. 11 for limits without assuming ${{\mathit A}^{0}}$ is pseudoscalar.
49  AAD 2022D search for ${{\mathit Z}}{{\mathit A}^{0}}$ associate production with ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$, ${{\mathit A}^{0}}$ decaying invisibly, in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5 for excluded regions in the mass parameter space of two Higgs doublet plus singlet (2HDM+${{\mathit A}^{0}}$) model with a certain choice of the model parameters.
50  AAD 2022F search for gluon fusion production of ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ using $126 - 139$ fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. B(${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$) = 0.582 is assumed. See their Fig. 14 for limit on the product of production cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.251 - 5.0$ TeV.
51  AAD 2022I search for ${{\mathit Z}}{{\mathit H}}$ associate production with the decay chain ${{\mathit H}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{{2}}}^{0}}{{\widetilde{\mathit \chi}}_{{{1}}}^{0}}$, ${{\widetilde{\mathit \chi}}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\widetilde{\mathit \chi}}_{{{1}}}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$, and ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$, in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 3 and 4 for limits on the product of cross section times the branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $20 - 65$ GeV with various choices of NMSSM model parameters.
52  AAD 2022J search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$ with ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ and ${{\mathit Z}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$, ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV assuming SM gluon-gluon fusion production of the ${{\mathit H}}$. See their Fig. 17(b) for limits on the product of cross section times the branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $15 - 30$ GeV.
53  AAD 2022J search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ with ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV assuming SM gluon-gluon fusion production of the ${{\mathit H}}$ in the range of ${\mathit m}_{{{\mathit A}^{0}}}$ = $1 - 60$ GeV . See their Fig. 14(b) for limits on the product of cross section times the branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $1.5 - 60$ GeV (excluding ${{\mathit \psi}}$ and ${{\mathit \Upsilon}}$ regions). The limit also applies to the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit H}_{{{1}}}^{0}}$.
54  AAD 2022P search for invisibly decaying ${{\mathit H}_{{{1}}}^{0}}$, ${{\mathit H}_{{{2}}}^{0}}$ produced by vector boson fusion in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. Limit on the product of cross section times branching ratio in the range $0.1 - 1$ pb (95$\%$ CL) is given for the mass range $0.05 - 2$ TeV. See their Fig. 14.
55  AAD 2022Y search for gluon fusion production of ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \gamma}}{{\mathit \gamma}}$ in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 15 for limit on the product of production cross section times branching ratios to ${{\mathit H}}{{\mathit H}}$ for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.251 - 1.0$ TeV.
56  ABRATENKO 2022A search for a singlet scalar boson ${{\mathit H}_{{{1}}}^{0}}$ having a small mixing with the SM Higgs boson in the decay chain ${{\mathit K}^{+}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit \pi}^{+}}$, ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ from data corresponding to $7.01 \times 10^{20}$ protons on NuMI target. See their Fig. 13 (right) and Table V for limits on the SM Higgs component of ${{\mathit H}_{{{1}}}^{0}}$ for ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}$ = $212 - 279$ MeV.
57  TUMASYAN 2022AK search for gluon-fusion production of ${{\mathit H}_{{{3}}}^{0}}$ decaying to ${{\mathit H}_{{{1}}}^{0}}$ ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{3}}}^{0}}}$ = $1 - 3$ TeV, ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}$ = $25 - 100$ GeV.
58  TUMASYAN 2022D search for production of an ${{\mathit H}_{{{2}}}^{0}}$ (denoted radion in the paper) in gluon fusion and vector boson fusion, decaying to ${{\mathit W}^{+}}{{\mathit W}^{-}}$ in the final states ${{\mathit \ell}}{{\mathit \nu}}$ + hadrons, using 137 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $1.0 - 4.5$ TeV.
59  AAD 2021AF search for production of a heavy ${{\mathit H}_{{{2}}}^{0}}$ state decaying to ${{\mathit Z}}{{\mathit Z}}$ in the final states ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \ell}^{'+}}{{\mathit \ell}^{'-}}$ and ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \nu}}{{\overline{\mathit \nu}}}$ in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 4 for upper limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 2.0$ TeV assuming ggF or VBF with narrow width approximation, and Fig. 5 for upper limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.4 - 2.0$ TeV assuming ggF, and with several assumptions on its width.
60  AAD 2021AI search for production of an ${{\mathit A}^{0}}$ in gluon-gluon fusion and in association with a ${{\mathit b}}{{\overline{\mathit b}}}$, decaying to ${{\mathit Z}}$ ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ or ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit W}^{+}}{{\mathit W}^{-}}$ in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 9 and 13 for cross section limits for ${\mathit m}_{{{\mathit A}^{0}}}$ = $230 - 800$ GeV and ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $130 - 700$ GeV.
61  AAD 2021AY search for production of a scalar resonance decaying to ${{\mathit \gamma}}{{\mathit \gamma}}$ in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5(a) for limits on fiducial cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.16 - 3$ TeV with narrow width approximation, and Table 2 with several assumptions on the width.
62  AAD 2021AZ search for production of ${{\mathit A}_{{{2}}}^{0}}$ decaying to ${{\mathit H}}{{\mathit A}_{{{1}}}^{0}}$ followed by ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$, ${{\mathit A}_{{{1}}}^{0}}$ $\rightarrow$ invisible in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. $10 - 12$ for limits in terms of two-Higgs-doublet model plus singlet pseudoscalar and a fermionic Dark Matter particle.
63  AAD 2021BB search for production of ${{\mathit A}_{{{2}}}^{0}}$ by gluon fusion or associated ${{\mathit A}_{{{2}}}^{0}}{{\mathit b}}{{\overline{\mathit b}}}$ production, decaying to ${{\mathit H}}{{\mathit A}_{{{1}}}^{0}}$ followed by ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$, ${{\mathit A}_{{{1}}}^{0}}$ $\rightarrow$ invisible in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8 for limits in terms of two-Higgs-doublet plus singlet pseudoscalar model.
64  AAD 2021BE search for production of ${{\mathit A}_{{{1}}}^{0}}$ associated with a single top quark and either a light quark or a ${{\mathit W}}$ boson, decaying to invisible final states, in 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. $13 - 15$ for limits in terms of two-Higgs-doublet model plus singlet pseudoscalar, which is assumed to decay to a pair of Dark Matter particles.
65  ABRATENKO 2021 search for a singlet scalar boson ${{\mathit H}_{{{1}}}^{0}}$ having a small mixing with the SM Higgs boson in the decay chain ${{\mathit K}^{+}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit \pi}^{+}}$, ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ from data corresponding to $1.93 \times 10^{20}$ protons on NuMI target. See their Fig. 2 for limits on the SM Higgs component of ${{\mathit H}_{{{1}}}^{0}}$ for ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}$ = $3 - 210$ MeV.
66  SIRUNYAN 2021A search for ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$ with ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$, ${{\mathit A}^{0}}$ decaying invisibly, in 137 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8 for excluded regions in the mass parameter space of two Higgs doublet plus singlet model with a certain choice of the model parameters.
67  TUMASYAN 2021F search for gluon fusion production of ${{\mathit H}_{{{3}}}^{0}}$ decaying to ${{\mathit H}}$ ${{\mathit H}_{{{1,2}}}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ in 137 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 5 and 6 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{1,2}}}^{0}}}$ = $0.06 - 2.8$ TeV and ${\mathit m}_{{{\mathit H}_{{{3}}}^{0}}}$ = $0.24 - 3.0$ TeV.
68  AAD 2020AA search for ${{\mathit H}_{{{2}}}^{0}}/{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ produced by gluon fusion or ${{\mathit b}}$-associated production using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 2(a), 2(b) for limits on the product of cross section and branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$, ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.2 - 2.5$ TeV.
69  AAD 2020AI search for ${{\mathit Z}}{{\mathit H}}$ production followed by the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 36 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The search looks for collimated ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ decays and is complementary to AABOUD 2018BX. See their Fig. 10 for limits on the product of production cross section and branching ratios in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $15 - 30$ GeV.
70  AAD 2020AO search for gluon fusion production of ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ (with hadronically decaying ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$) using 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. Limit on the product of production cross section times branching ratios in the range $28 - 817$ fb (95$\%$ CL) is given for ${\mathit m}_{{{\mathit A}^{0}}}$ = $1.0 - 3.0$ TeV, see their Fig. 13.
71  AAD 2020C combine searches for a scalar resonance decaying to ${{\mathit H}}{{\mathit H}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV from AABOUD 2019A, AABOUD 2019O, AABOUD 2018CQ, AABOUD 2019T, AABOUD 2018CW, and AABOUD 2018BU. See their Fig. 5(a) for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.26 - 3$ TeV.
72  AAD 2020L search for ${{\mathit b}}$-associated production of ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit b}}{{\overline{\mathit b}}}$ in 27.8 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8 for limits on the product of cross section and branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.45 - 1.4$ TeV.
73  AAD 2020X search for vector-boson-fusion production of ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit H}}{{\mathit H}}$ using 126 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5 for limits on the product of cross section and branching ratio for the assumptions of a narrow- and broad-width resonance.
74  AAIJ 2020AL search for dimuon resonance in the mass range $0.2 - 60$ GeV in 5.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV, in inclusive and ${{\mathit b}}$ quark associated production. Displaced decays are searched for for masses below 3 GeV. See their Figs. $7 - 9$ for cross section limits and Fig. 10 for limits for mixing angle in two Higgs doublet plus singlet model (at 90$\%$ CL).
75  SIRUNYAN 2020 search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ or ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 10 for limits on the product of production cross section (normalized to the SM) and branching ratios in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $4 - 15$ GeV.
76  SIRUNYAN 2020AA search for ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ or ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}_{{{2}}}^{0}}$, ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on the product of cross section and branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.12 - 1$ TeV and ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.03 - 1$ TeV.
77  SIRUNYAN 2020AC search for gluon-fusion production of ${{\mathit A}^{0}}$ decaying to ${{\mathit Z}}{{\mathit H}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5 for limits on the product of cross section and branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $220 - 400$ GeV.
78  SIRUNYAN 2020AD search for lepton-flavor violating decays ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \mu}}{{\mathit \tau}}$ , ${{\mathit e}}{{\mathit \tau}}$ of gluon-fusion-produced ${{\mathit H}_{{{2}}}^{0}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5 (9) and Table 5 (6) for limits on production cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 0.9$ TeV for the ${{\mathit \mu}}{{\mathit \tau}}$ (${{\mathit e}}{{\mathit \tau}}$) final state.
79  SIRUNYAN 2020AF search for ${{\mathit H}_{{{2}}}^{0}}/{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$ with one or two charged leptons in the final state using kinematic variables in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 5 and 6 for limits on top Yukawa coupling of ${{\mathit H}_{{{2}}}^{0}}$ and ${{\mathit A}^{0}}$ for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$, ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.4 - 0.75$ TeV for various width assumptions.
80  SIRUNYAN 2020AP search for the decay ${{\mathit H}}$ or ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ (for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = 300 GeV) with boosted final-state topology in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on the product of production cross section (normalized to the SM) and branching ratios in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $3.6 - 21$ GeV, and Figs. 8 and 9 for its interpretation in terms of models with two Higgs doublets plus a singlet.
81  SIRUNYAN 2020Y search for gluon-fusion and vector-boson-fusion production of ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit W}^{+}}{{\mathit W}^{-}}$ in the final states ${{\mathit \ell}}{{\mathit \nu}}{{\mathit \ell}}{{\mathit \nu}}$ and ${{\mathit \ell}}{{\mathit \nu}}{{\mathit q}}{{\mathit q}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 6 for limits on the product of cross section and branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 3$ TeV.
82  SIRUNYAN 2020Z search for ${{\mathit H}_{{{{1,2}}}}^{0}}$ or ${{\mathit A}^{0}}$ production in association with a ${{\mathit t}}{{\overline{\mathit t}}}$ pair, decaying to ${{\mathit e}^{+}}{{\mathit e}^{-}}$ or ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$, in 137 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 12 for limits on production cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$, ${\mathit m}_{{{\mathit A}^{0}}}$ = $15 - 75$ GeV and $108 - 340$ GeV.
83  AABOUD 2019A search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in $27.5 - 36.1$ fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 9(a) for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.26 - 3$ TeV.
84  AABOUD 2019AG search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ in 36.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 6 (a) for limits on the product of production cross section (normalized to the SM) and branching ratios in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $20 - 60$ GeV.
85  AABOUD 2019O search for a scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit W}}{{\mathit W}^{*}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 12 (left) for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.5 - 3$ TeV.
86  AABOUD 2019T search for a scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}^{*}}{{\mathit W}}{{\mathit W}^{*}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 3 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $260 - 500$ GeV, assuming SM decay rates for the ${{\mathit H}}$.
87  AABOUD 2019V combine published ATLAS data to constrain two-Higgs-doublet plus singlet pseudoscalar model with ${{\mathit A}_{{{1}}}^{0}}$ decaying to invisible final states. See their Fig. 19 for excluded parameter regions.
88  AABOUD 2019Y search for a narrow scalar resonance produced by gluon fusion or ${{\mathit b}}$ associated production, decaying to ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 4 and 5(a) for cross section limits for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 1.0$ TeV.
89  AALTONEN 2019 search for ${{\mathit b}}$ associated production of a scalar particle decaying to ${{\mathit b}}{{\overline{\mathit b}}}$ in 5.4 fb${}^{-1}$ of ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV. See their Fig. 3 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ = $100 - 300$ GeV.
90  SIRUNYAN 2019 search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit b}}{{\overline{\mathit b}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 9 (left) for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $260 - 900$ GeV.
91  SIRUNYAN 2019AE search for a scalar resonance produced in association with a ${{\mathit b}}{{\overline{\mathit b}}}$ pair, decaying to ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 4 for cross section limits for ${\mathit m}_{{{\mathit A}^{0}}}$ = $25 - 70$ GeV.
92  SIRUNYAN 2019AN search for production of ${{\mathit A}_{{{2}}}^{0}}$ decaying to ${{\mathit H}}{{\mathit A}_{{{1}}}^{0}}$ followed by ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$, ${{\mathit A}_{{{1}}}^{0}}$ $\rightarrow$ invisible in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV, in the mass range ${\mathit m}_{{{\mathit A}_{{{2}}}^{0}}}$ = $0.2 - 1.6$ TeV, ${\mathit m}_{{{\mathit A}_{{{1}}}^{0}}}$ = $0.15 - 0.5$ TeV. See their Fig. 6 for limits in terms of two-Higgs-doublet plus singlet pseudoscalar model.
93  SIRUNYAN 2019AV search for a scalar resonance produced by gluon fusion or ${{\mathit b}}$-associated production, decaying to ${{\mathit Z}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ (${{\mathit \ell}}$ = ${{\mathit e}}$, ${{\mathit \mu}}$) or ${{\mathit \nu}}{{\overline{\mathit \nu}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5 for cross section limits for ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.22 - 1.0$ TeV.
94  SIRUNYAN 2019B search for gluon fusion production of narrow scalar resonance with large transverse momentum, decaying to ${{\mathit b}}{{\overline{\mathit b}}}$, in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 7 and 8 for limits on cross section times branching ratio for the resonance mass of $50 - 350$ GeV.
95  SIRUNYAN 2019BB search for the decay ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV and 35.9 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. $4 - 6$ for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}$ = $80 - 110$ GeV (some results in Fig. 5 for ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}$ = $70 - 110$ GeV).
96  SIRUNYAN 2019BD search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5 for limits on the product of cross section times branching ratios in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $20 - 62.5$ GeV. See also their Figs. 6 and 7 for interpretation of the data in terms of models with two Higgs doublets and a singlet.
97  SIRUNYAN 2019BE combine searches for ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV in various ${{\mathit H}}$ decay modes, from SIRUNYAN 2018A, SIRUNYAN 2018AF, SIRUNYAN 2018CW, SIRUNYAN 2019, and SIRUNYAN 2019H. See their Fig. 3 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.25 - 3$ TeV.
98  SIRUNYAN 2019BQ search for production of ${{\mathit H}_{{{{1,2}}}}^{0}}$ decaying to ${{\mathit A}^{0}}$ ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 2 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ = $90 - 150$ GeV, ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.25 - 3.55$ GeV.
99  SIRUNYAN 2019CR search for production of ${{\mathit H}_{{{2}}}^{0}}$ $/$ ${{\mathit A}^{0}}$ in gluon fusion and in association with a ${{\mathit b}}{{\overline{\mathit b}}}$ pair, decaying to ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 6 for limits on cross section times branching ratio.
100  SIRUNYAN 2019H search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV, where one ${{\mathit b}}{{\overline{\mathit b}}}$ pair is resolved and the other not. Limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.75 - 1.6$ TeV are obtained and combined with data from SIRUNYAN 2018AF. See their Fig. 5 (right).
101  AABOUD 2018AA search for production of a scalar resonance decaying to ${{\mathit Z}}{{\mathit \gamma}}$, with ${{\mathit Z}}$ decaying hadronically, in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8(a) for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $1.0 - 6.8$ TeV.
102  AABOUD 2018AG search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit g}}{{\mathit g}}$ in 36.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 2 and Table 6 for cross section limits in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $20 - 60$ GeV.
103  AABOUD 2018AH search for production of an ${{\mathit A}^{0}}$ in gluon-gluon fusion and in association with a ${{\mathit b}}{{\overline{\mathit b}}}$, decaying to ${{\mathit Z}}$ ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5 for cross section limits for ${\mathit m}_{{{\mathit A}^{0}}}$ = $230 - 800$ GeV and ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $130 - 700$ GeV.
104  AABOUD 2018AI search for production of an ${{\mathit A}^{0}}$ in gluon-gluon fusion and in association with a ${{\mathit b}}{{\overline{\mathit b}}}$, decaying to ${{\mathit Z}}{{\mathit H}}$ in the final states ${{\mathit \nu}}{{\overline{\mathit \nu}}}{{\mathit b}}{{\overline{\mathit b}}}$ and ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 6 for cross section limits for ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.2 - 2$ TeV. See also AABOUD 2018CC.
105  AABOUD 2018BF search for production of a heavy ${{\mathit H}_{{{2}}}^{0}}$ state decaying to ${{\mathit Z}}{{\mathit Z}}$ in the final states ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ and ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \nu}}{{\overline{\mathit \nu}}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 6 for upper limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 1.2$ TeV assuming ggF or VBF with the NWA. See their Fig. 7 for upper limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.4 - 1.0$ TeV assuming ggF, and with several assumptions on its width.
106  AABOUD 2018BU search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit W}}{{\mathit W}^{*}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 4 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $260 - 500$ GeV.
107  AABOUD 2018BX search for associated production of ${{\mathit W}}{{\mathit H}}$ or ${{\mathit Z}}{{\mathit H}}$ followed by the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 9 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $20 - 60$ GeV. See also their Fig. 10 for the dependence of the limit on ${{\mathit A}^{0}}$ lifetime.
108  AABOUD 2018CQ search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 2 (above) for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $260 - 1000$ GeV.
109  AABOUD 2018F search for production of a narrow scalar resonance decaying to ${{\mathit W}^{+}}{{\mathit W}^{-}}$ and ${{\mathit Z}}{{\mathit Z}}$, followed by hadronic decays of ${{\mathit W}}$ and ${{\mathit Z}}$, in 36.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 5(c) for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $1.2 - 3.0$ TeV.
110  AAIJ 2018AM search for gluon-fusion production of ${{\mathit H}_{{{{1,2}}}}^{0}}$ decaying to ${{\mathit \mu}}{{\mathit \tau}}$ in 2 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 2 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{{1,2}}}}^{0}}}$ = $45 - 195$ GeV.
111  AAIJ 2018AQ search for gluon-fusion production of a scalar particle ${{\mathit A}^{0}}$ decaying to ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ in 1.99 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV and 0.98 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. See their Fig. 4 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit A}^{0}}}$ = $5.5 - 15$ GeV (using the $\mathit E_{{\mathrm {cm}}}$ = 8 TeV data set).
112  AAIJ 2018AQ search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$, with one of the ${{\mathit A}^{0}}$ decaying to ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$, in 1.99 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV and 0.98 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. See their Fig. 5 (right) for limits on the product of branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $5.5 - 15$ GeV (using the $\mathit E_{{\mathrm {cm}}}$ = 8 TeV data set).
113  SIRUNYAN 2018AF search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV, where both ${{\mathit b}}{{\overline{\mathit b}}}$ pairs are not resolved. See their Fig. 9 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.75 - 3$ TeV.
114  SIRUNYAN 2018BA search for production of a heavy ${{\mathit H}_{{{2}}}^{0}}$ state decaying to ${{\mathit Z}}{{\mathit Z}}$ in the final states ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$, ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit q}}{{\overline{\mathit q}}}$, and ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \nu}}{{\overline{\mathit \nu}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 10 and 11 for upper limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.13 - 3$ TeV with several assumptions on its width and on the fraction of Vector-Boson-Fusion of the total production cross section.
115  SIRUNYAN 2018CW search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV, where both ${{\mathit b}}{{\overline{\mathit b}}}$ pairs are resolved. See their Fig. 9 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $260 - 1200$ GeV.
116  SIRUNYAN 2018DK search for production of a scalar resonance decaying to ${{\mathit Z}}{{\mathit \gamma}}$, with ${{\mathit Z}}$ decaying to ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ or hadronically, in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.35 - 4$ TeV for different assumptions on the width of the resonance.
117  SIRUNYAN 2018DT search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on the product of branching ratios in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $15 - 60$ GeV. See also their Fig. 8 for interpretation of the data in terms of models with two Higgs doublets and a singlet.
118  SIRUNYAN 2018DU search for production of a narrow scalar resonance decaying to ${{\mathit \gamma}}{{\mathit \gamma}}$ in 35.9 fb${}^{-1}$ (taken in 2016) of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 3 (right) for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.5 - 5$ TeV for several values of its width-to-mass ratio.
119  SIRUNYAN 2018ED search for production of an ${{\mathit A}^{0}}$ in gluon-gluon fusion and in association with a ${{\mathit b}}{{\overline{\mathit b}}}$, decaying to ${{\mathit Z}}{{\mathit H}}$ in the final states ${{\mathit \nu}}{{\overline{\mathit \nu}}}{{\mathit b}}{{\overline{\mathit b}}}$ or ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8 for cross section limits for ${\mathit m}_{{{\mathit A}^{0}}}$ = $0.8 - 2$ TeV.
120  SIRUNYAN 2018EE search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 4 for limits on the product of branching ratios in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $15 - 62.5$ GeV, normalized to the SM production cross section. See also their Fig. 5 for interpretation of the data in terms of models with two Higgs doublets and a singlet.
121  SIRUNYAN 2018F search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}}$ ${{\mathit b}}{{\overline{\mathit b}}}$ or ${{\mathit Z}}{{\mathit Z}}{{\mathit b}}{{\overline{\mathit b}}}$ in the final state ${{\mathit \ell}}{{\mathit \ell}}{{\mathit \nu}}{{\mathit \nu}}{{\mathit b}}{{\overline{\mathit b}}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $250 - 900$ GeV.
122  AABOUD 2017 search for production of a scalar resonance decaying to ${{\mathit Z}}{{\mathit \gamma}}$ in 3.2 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 4 for the limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.25 - 3.0$ TeV.
123  AABOUD 2017AP search for production of a scalar resonance decaying to ${{\mathit \gamma}}{{\mathit \gamma}}$ in 36.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 4(a) for limits on fiducial cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 2.7$ TeV with narrow width approximation.
124  AABOUD 2017AW search for production of a scalar resonance decaying to ${{\mathit Z}}{{\mathit \gamma}}$ in 36.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 7 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.25 - 2.4$ TeV.
125  KHACHATRYAN 2017AZ search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$, ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$, and ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Figs. 4, 5, and 6 for cross section limits in the range ${\mathit m}_{{{\mathit A}^{0}}}$ = $5 - 62.5$ GeV. See also their Figs. 7, 8, and 9 for interpretation of the data in terms of models with two Higgs doublets and a singlet.
126  KHACHATRYAN 2017D search for production of a scalar resonance decaying to ${{\mathit Z}}{{\mathit \gamma}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV and 2.7 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 3 and 4 for the limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 2.0$ TeV.
127  KHACHATRYAN 2017R search for production of a narrow scalar resonance decaying to ${{\mathit \gamma}}{{\mathit \gamma}}$ in 12.9 fb${}^{-1}$ (taken in 2016) of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 2 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.5 - 4.5$ TeV for several values of its width-to-mass ratio. Limits from combination with KHACHATRYAN 2016M are shown in their Figs. 4 and 6.
128  SIRUNYAN 2017CN search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 18.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 5 (above) and Table II for limits on the cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.3 - 1$ TeV, and Fig. 6 (above) and Table III for the corresponding limits by combining with data from KHACHATRYAN 2016BQ and KHACHATRYAN 2015R.
129  SIRUNYAN 2017Y search for production of a scalar resonance decaying to ${{\mathit Z}}{{\mathit \gamma}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV and 2.7 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Figs. 3, 4 and Table 3 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.7 - 3.0$ TeV, and Fig. 5 for the corresponding limits for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 3.0$ TeV from combination with KHACHATRYAN 2017D data.
130  AABOUD 2016AB search for associated production of ${{\mathit W}}{{\mathit H}}$ with the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 3.2 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 8 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $20 - 60$ GeV.
131  AABOUD 2016AE search for production of a narrow scalar resonance decaying to ${{\mathit W}^{+}}{{\mathit W}^{-}}$ and ${{\mathit Z}}{{\mathit Z}}$ in 3.2 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 4 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.5 - 3$ TeV.
132  AABOUD 2016H search for production of a scalar resonance decaying to ${{\mathit \gamma}}{{\mathit \gamma}}$ in 3.2 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 12 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.2 - 2$ TeV with different assumptions on the width.
133  AABOUD 2016I search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 3.2 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 10(c) for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.5 - 3$ TeV.
134  AAD 2016AX search for production of a heavy ${{\mathit H}}$ state decaying to ${{\mathit Z}}{{\mathit Z}}$ in the final states ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$, ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \nu}}{{\overline{\mathit \nu}}}$, ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit q}}{{\overline{\mathit q}}}$, and${{\mathit \nu}}{{\overline{\mathit \nu}}}{{\mathit q}}{{\overline{\mathit q}}}$ in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig.12 for upper limits on ${\mathit \sigma (}{{\mathit H}}{)}$ B(${{\mathit H}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$) for ${\mathit m}_{{{\mathit H}}}$ ranging from 140 GeV to 1000 GeV.
135  AAD 2016C search for production of a heavy ${{\mathit H}}$ state decaying to ${{\mathit W}^{+}}{{\mathit W}^{-}}$ in the final states ${{\mathit \ell}}{{\mathit \nu}}{{\mathit \ell}}{{\mathit \nu}}$ and ${{\mathit \ell}}{{\mathit \nu}}{{\mathit q}}{{\mathit q}}$ in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Figs. 12, 13, and 16 for upper limits on ${\mathit \sigma (}{{\mathit H}}{)}$ B(${{\mathit H}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$) for ${\mathit m}_{{{\mathit H}}}$ ranging from 300 GeV to 1000 or 1500 GeV with various assumptions on the total width of ${{\mathit H}}$.
136  AAD 2016L search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \gamma}}$ in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 4 (upper right) for limits on cross section times branching ratios (normalized to the SM ${{\mathit H}}$ cross section) for ${\mathit m}_{{{\mathit A}^{0}}}$ = $10 - 60$ GeV.
137  AAD 2016L search for the decay ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \gamma}}$ in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 4 (lower right) for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = 600 GeV and ${\mathit m}_{{{\mathit A}^{0}}}$ = $10 - 245$ GeV, and Table 5 for limits for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$= 300 and 900 GeV.
138  AALTONEN 2016C search for electroweak associated production of ${{\mathit H}_{{{1}}}^{0}}{{\mathit H}^{\pm}}$ followed by the decays ${{\mathit H}^{\pm}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit W}^{*}}$, ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ for ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}$ = $10 - 105$ GeV and ${\mathit m}_{{{\mathit H}^{\pm}}}$ = $30 - 300$ GeV. See their Fig. 3 for excluded parameter region in a two-doublet model in which ${{\mathit H}_{{{1}}}^{0}}$ has no direct decay to fermions.
139  KHACHATRYAN 2016BG search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 6 for limits on the cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $1.15 - 3$ TeV.
140  KHACHATRYAN 2016BQ search for a resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit b}}{{\overline{\mathit b}}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 9 for limits on the cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.26 - 1.1$ TeV.
141  KHACHATRYAN 2016F search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}$ ${{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 8 for cross section limits for ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}$ = $4 - 8$ GeV.
142  KHACHATRYAN 2016M search for production of a narrow resonance decaying to ${{\mathit \gamma}}{{\mathit \gamma}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV and 3.3 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 3 (top) for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.5 - 4$ TeV.
143  KHACHATRYAN 2016P search for gluon fusion production of an ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 8 (lower right) for cross section limits for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $260 - 350$ GeV.
144  KHACHATRYAN 2016P search for gluon fusion production of an ${{\mathit A}^{0}}$ decaying to ${{\mathit Z}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 10 for cross section limits for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $220 - 350$ GeV.
145  AAD 2015BK search for production of a heavy ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit H}}{{\mathit H}}$ in the final state ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 19.5 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 14(c) for ${\mathit \sigma (}{{\mathit H}_{{{2}}}^{0}}{)}$ B(${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$) for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $500 - 1500$ GeV with ${\Gamma}_{{\mathit H}_{{{2}}}^{0}}$ = 1 GeV.
146  AAD 2015BZ search for the decay ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ (${\mathit m}_{{{\mathit H}}}$ = 125 GeV) in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 6 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit A}^{0}}}$ = $3.7 - 50$ GeV.
147  AAD 2015BZ search for a state ${{\mathit H}_{{{2}}}^{0}}$ via the decay ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 6 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $100 - 500$ GeV and ${\mathit m}_{{{\mathit A}^{0}}}$ = 5 GeV.
148  AAD 2015CE search for production of a heavy ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit H}}{{\mathit H}}$ in the final states ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ and ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit W}}{{\mathit W}^{*}}$ in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV and combine with data from AAD 2015H and AAD 2015BK. A limit ${\mathit \sigma (}{{\mathit H}_{{{2}}}^{0}}{)}$ B(${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$) $<$ $2.1 - 0.011$ pb (95$\%$ CL) is given for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $260 - 1000$ GeV. See their Fig. 6.
149  AAD 2015H search for production of a heavy ${{\mathit H}_{{{2}}}^{0}}$ decaying to ${{\mathit H}}{{\mathit H}}$ in the finalstate ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit b}}{{\overline{\mathit b}}}$ in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV.A limit of ${\mathit \sigma (}{{\mathit H}_{{{2}}}^{0}}{)}$ B(${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\mathit H}}$) $<$ $3.5 - 0.7$ pb is given for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $260 - 500$ GeV at 95$\%$ CL. See their Fig. 3.
150  AAD 2015S search for production of ${{\mathit A}^{0}}$ decaying to ${{\mathit Z}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$, ${{\mathit \nu}}{{\overline{\mathit \nu}}}{{\mathit b}}{{\overline{\mathit b}}}$ and ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 3 for cross section limits for ${\mathit m}_{{{\mathit A}^{0}}}$ = $200 - 1000$ GeV.
151  KHACHATRYAN 2015AW search for production of a heavy state ${{\mathit H}_{{{2}}}^{0}}$ of an electroweak singlet extension of the Standard Model via the decays of ${{\mathit H}_{{{2}}}^{0}}$ to ${{\mathit W}^{+}}{{\mathit W}^{-}}$ and ${{\mathit Z}}{{\mathit Z}}$ in up to 5.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV and up to 19.7 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV in the range ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $145 - 1000$ GeV. See their Figs. 8 and 9 for limits in the parameter space of the model.
152  KHACHATRYAN 2015BB search for production of a resonance ${{\mathit H}}$ decaying to ${{\mathit \gamma}}{{\mathit \gamma}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 7 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}}}$ = $150 - 850$ GeV.
153  KHACHATRYAN 2015N search for production of ${{\mathit A}^{0}}$ decaying to ${{\mathit Z}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 3 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $225 - 600$ GeV.
154  KHACHATRYAN 2015O search for production of a high-mass narrow resonance ${{\mathit A}^{0}}$ decaying to ${{\mathit Z}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 19.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 6 for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit A}^{0}}}$ = $800 - 2500$ GeV.
155  KHACHATRYAN 2015R search for a narrow scalar resonance decaying to ${{\mathit H}}$ ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 17.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 5 (top) for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$ = $0.27 - 1.1$ TeV.
156  AAD 2014AP search for a second ${{\mathit H}}$ state decaying to ${{\mathit \gamma}}{{\mathit \gamma}}$ in addition to the state at about 125 GeV in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 4 for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}}}$ = $65 - 600$ GeV.
157  AAD 2014M search for the decay cascade ${{\mathit H}_{{{2}}}^{0}}$ $\rightarrow$ ${{\mathit H}^{\pm}}{{\mathit W}^{\mp}}$ $\rightarrow$ ${{\mathit H}}{{\mathit W}^{\pm}}{{\mathit W}^{\mp}}$, ${{\mathit H}}$ decaying to ${{\mathit b}}{{\overline{\mathit b}}}$ in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Table III for limits on cross section times branching ratio for ${\mathit m}_{{{\mathit H}_{{{2}}}^{0}}}$= $325 - 1025$ GeV and ${\mathit m}_{{{\mathit H}^{+}}}$= $225 - 925$ GeV.
158  CHATRCHYAN 2014G search for a second ${{\mathit H}}$ state decaying to ${{\mathit W}}{{\mathit W}^{(*)}}$ in addition to the observed signal at about 125 GeV using 4.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV and 19.4 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 21 (right) for cross section limits in the mass range $110 - 600$ GeV.
159  KHACHATRYAN 2014P search for a second ${{\mathit H}}$ state decaying to ${{\mathit \gamma}}{{\mathit \gamma}}$ in addition to the observed signal at about 125 GeV using 5.1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV and 19.7 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Figs. 27 and 28 for cross section limits in the mass range $110 - 150$ GeV.
160  AALTONEN 2013P search for production of a heavy Higgs boson ${{\mathit H}^{'0}}$ that decays into a charged Higgs boson ${{\mathit H}^{\pm}}$ and a lighter Higgs boson ${{\mathit H}}$ via the decay chain ${{\mathit H}^{'0}}$ $\rightarrow$ ${{\mathit H}^{\pm}}{{\mathit W}^{\mp}}$, ${{\mathit H}^{\pm}}$ $\rightarrow$ ${{\mathit W}^{\pm}}{{\mathit H}}$, ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ in the final state ${{\mathit \ell}}{{\mathit \nu}}$ plus 4 jets in 8.7 fb${}^{-1}$ of ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV. See their Fig. 4 for limits on cross section times branching ratio in the ${\mathit m}_{{{\mathit H}^{\pm}}}−{\mathit m}_{{{\mathit H}^{'0}}}$ plane for ${\mathit m}_{{{\mathit H}}}$ = 126 GeV.
161  CHATRCHYAN 2013BJ search for ${{\mathit H}}$ production in the decay chain ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ in 5.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. See their Fig. 2 for limits on cross section times branching ratio.
162  AALTONEN 2011P search in 2.7 fb${}^{-1}$ of ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV for the decay chain ${{\mathit t}}$ $\rightarrow$ ${{\mathit b}}{{\mathit H}^{+}}$, ${{\mathit H}^{+}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit A}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ with ${\mathit m}_{{{\mathit A}^{0}}}$ between 4 and 9 GeV. See their Fig.$~$4 for limits on B(${{\mathit t}}$ $\rightarrow$ ${{\mathit b}}{{\mathit H}^{+}}$) for 90 $<$ ${\mathit m}_{{{\mathit H}^{+}}}<$ 160 GeV.
163  ABBIENDI 2010 search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}}$ with the decay chain ${{\mathit H}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{{1}}}^{0}}{{\widetilde{\mathit \chi}}_{{{2}}}^{0}}$, ${{\widetilde{\mathit \chi}}_{{{2}}}^{0}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{{1}}}^{0}}$ + (${{\mathit \gamma}}$ or ${{\mathit Z}^{*}}$), when ${{\widetilde{\mathit \chi}}_{{{1}}}^{0}}$ and ${{\widetilde{\mathit \chi}}_{{{2}}}^{0}}$ are nearly degenerate. For a mass difference of 2 (4) GeV, a lower limit on ${\mathit m}_{{{\mathit H}}}$ of 108.4 (107.0) GeV (95$\%$ CL) is obtained for SM ${{\mathit Z}}{{\mathit H}}$ cross section and B(${{\mathit H}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{{1}}}^{0}}{{\widetilde{\mathit \chi}}_{{{2}}}^{0}}$) = 1.
164  SCHAEL 2010 search for the process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}}{{\mathit Z}}$ followed by the decay chain ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ with ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$, ${{\mathit \nu}}{{\overline{\mathit \nu}}}$ at $\mathit E_{{\mathrm {cm}}}$ = $183 - 209$ GeV. For a ${{\mathit H}}{{\mathit Z}}{{\mathit Z}}$ coupling equal to the SM value, B(${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$) = B(${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$) = 1, and ${\mathit m}_{{{\mathit A}^{0}}}$ = $4 - 10$ GeV, ${\mathit m}_{{{\mathit H}}}$ up to 107 GeV is excluded at 95$\%$ CL.
165  ABAZOV 2009V search for ${{\mathit H}}$ production followed by the decay chain ${{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ or ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in 4.2 fb${}^{-1}$ of ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV. See their Fig. 3 for limits on $\sigma ({{\mathit H}})\cdot{}B({{\mathit H}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$) for ${\mathit m}_{{{\mathit A}^{0}}}$ = $3.6 - 19$ GeV.
166  ABBIENDI 2005A search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit A}^{0}}$ in general Type-II two-doublet models, with decays ${{\mathit H}_{{{1}}}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}$, ${{\mathit g}}{{\mathit g}}$, ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$, and ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$.
167  ABBIENDI 2004K search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}}{{\mathit Z}}$ with ${{\mathit H}}$ decaying to two jets of any flavor including ${{\mathit g}}{{\mathit g}}$. The limit is for SM production cross section with B(${{\mathit H}}$ $\rightarrow$ ${{\mathit j}}{{\mathit j}}$) = 1.
168  ABDALLAH 2004 consider the full combined LEP and LEP2 datasets to set limits on the Higgs coupling to ${{\mathit W}}$ or ${{\mathit Z}}$ bosons, assuming SM decays of the Higgs. Results in Fig. 26.
169  ACHARD 2004B search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}}{{\mathit Z}}$ with ${{\mathit H}}$ decaying to ${{\mathit b}}{{\overline{\mathit b}}}$, ${{\mathit c}}{{\overline{\mathit c}}}$, or ${{\mathit g}}{{\mathit g}}$. The limit is for SM production cross section with B(${{\mathit H}}$ $\rightarrow$ ${{\mathit j}}{{\mathit j}}$) = 1.
170  ACHARD 2004F search for ${{\mathit H}}$ with anomalous coupling to gauge boson pairs in the processes ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}}{{\mathit \gamma}}$, ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit H}}$, ${{\mathit H}}{{\mathit Z}}$ with decays ${{\mathit H}}$ $\rightarrow$ ${{\mathit f}}{{\overline{\mathit f}}}$, ${{\mathit \gamma}}{{\mathit \gamma}}$, ${{\mathit Z}}{{\mathit \gamma}}$, and ${{\mathit W}^{*}}{{\mathit W}}$ at $\mathit E_{{\mathrm {cm}}}$ = $189 - 209$ GeV. See paper for limits.
171  ABBIENDI 2003F search for ${{\mathit H}}$ $\rightarrow$ anything in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}}{{\mathit Z}}$, using the recoil mass spectrum of ${{\mathit Z}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ or ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$. In addition, it searched for ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \nu}}{{\overline{\mathit \nu}}}$ and ${{\mathit H}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ or photons. Scenarios with large width or continuum ${{\mathit H}}$ mass distribution are considered. See their Figs. 11--14 for the results.
172  ABBIENDI 2003G search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}_{{{1}}}^{0}}{{\mathit Z}}$ followed by ${{\mathit H}_{{{1}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit c}}{{\overline{\mathit c}}}$, ${{\mathit g}}{{\mathit g}}$, or ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ in the region ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}$ = 45-86 GeV and ${\mathit m}_{{{\mathit A}^{0}}}$ = 2-11 GeV. See their Fig. 7 for the limits.
173  Search for associated production of a ${{\mathit \gamma}}{{\mathit \gamma}}$ resonance with a ${{\mathit Z}}~$boson, followed by ${{\mathit Z}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}$, ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$, or ${{\mathit \nu}}{{\overline{\mathit \nu}}}$, at $\mathit E_{{\mathrm {cm}}}{}\leq{}$209 GeV. The limit is for a ${{\mathit H}}$ with SM production cross section and B(${{\mathit H}}$ $\rightarrow$ ${{\mathit f}}{{\overline{\mathit f}}}$)=0 for all fermions ${{\mathit f}}$.
174  For B(${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$)=1, ${\mathit m}_{{{\mathit H}}}>113.1$ GeV is obtained.
175  HEISTER 2002M search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}}{{\mathit Z}}$, assuming that ${{\mathit H}}$ decays to ${{\mathit q}}{{\overline{\mathit q}}}$, ${{\mathit g}}{{\mathit g}}$, or ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ only. The limit assumes SM production cross section.
176  ABBIENDI 2001E search for neutral Higgs bosons in general Type-II two-doublet models, at $\mathit E_{{\mathrm {cm}}}{}\leq{}$189 GeV. In addition to usual final states, the decays ${{\mathit H}_{{{1}}}^{0}}$, ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}$, ${{\mathit g}}{{\mathit g}}$ are searched for. See their Figs.$~$15,16 for excluded regions.
177  ACCIARRI 2000R search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}}{{\mathit \gamma}}$ with ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$, ${{\mathit Z}}{{\mathit \gamma}}$, or ${{\mathit \gamma}}{{\mathit \gamma}}$. See their Fig.$~$3 for limits on $\sigma \cdot{}$B. Explicit limits within an effective interaction framework are also given, for which the Standard Model Higgs search results are used in addition.
178  ACCIARRI 2000R search for the two-photon type processes ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit H}}$ with ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ or ${{\mathit \gamma}}{{\mathit \gamma}}$. See their Fig.$~$4 for limits on $\Gamma\mathrm {({{\mathit H}} \rightarrow {{\mathit \gamma}} {{\mathit \gamma}})}\cdot{}B({{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ or ${{\mathit b}}{{\overline{\mathit b}}}$) for ${\mathit m}_{{{\mathit H}}}=70 - 170$ GeV.
179  GONZALEZ-GARCIA 1998B use ${D0}$ limit for ${{\mathit \gamma}}{{\mathit \gamma}}$ events with missing $\mathit E_{\mathit T}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions (ABBOTT 1998) to constrain possible ${{\mathit Z}}{{\mathit H}}$ or ${{\mathit W}}{{\mathit H}}$ production followed by unconventional ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ decay which is induced by higher-dimensional operators. See their Figs.$~$1 and$~$2 for limits on the anomalous couplings.
180  KRAWCZYK 1997 analyse the muon anomalous magnetic moment in a two-doublet Higgs model (with type$~$II Yukawa couplings) assuming no ${{\mathit H}_{{{1}}}^{0}}{{\mathit Z}}{{\mathit Z}}$ coupling and obtain ${\mathit m}_{{{\mathit H}_{{{1}}}^{0}}}{ {}\gtrsim{} }5$ GeV or ${\mathit m}_{{{\mathit A}^{0}}}{ {}\gtrsim{} }5$ GeV for tan $\beta >50$. Other Higgs bosons are assumed to be much heavier.
181  ALEXANDER 1996H give B(${{\mathit Z}}$ $\rightarrow$ ${{\mathit H}}{{\mathit \gamma}}){\times }B({{\mathit H}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}$) $<1 - 4 \times 10^{-5}$ (95$\%$CL) and B(${{\mathit Z}}$ $\rightarrow$ ${{\mathit H}}{{\mathit \gamma}}){\times }B({{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$) $<0.7 - 2 \times 10^{-5}$ (95$\%$CL) in the range 20 $<{\mathit m}_{{{\mathit H}}}$ $<$80 GeV.
References