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 “${{\mathit H}^{0}}$ '', can be interpreted as one of the neutral Higgs bosons of an extended Higgs sector.

Other Mass Limits

We use a symbol ${{\mathit H}_{{1}}^{0}}$ if mass $<$ 125 GeV or ${{\mathit H}_{{2}}^{0}}$ if mass $>$ 125 GeV. The notation ${{\mathit H}^{0}}$ 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
 2022 A
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
2
 2021 AF
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$
3
 2021 AI
ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}_{{2}}^{0}}$
4
 2021 AY
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
5
 2021 AZ
ATLS ${{\mathit A}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit A}_{{1}}^{0}}$
6
 2021 BB
ATLS ${{\mathit A}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit A}_{{1}}^{0}}$
7
 2021 BE
ATLS ${{\mathit A}_{{1}}^{0}}$ $\rightarrow$ invisible
8
 2021
MCBN ${{\mathit K}^{+}}$ $\rightarrow$ ${{\mathit H}_{{1}}^{0}}{{\mathit \pi}^{+}}$
9
 2021 A
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$ , ${{\mathit A}^{0}}$ $\rightarrow$ invisible
10
 2021 F
CMS ${{\mathit H}_{{3}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}_{{1,2}}^{0}}$
11
 2020 AA
ATLS ${{\mathit H}_{{2}}^{0}}$ / ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$
12
 2020 AI
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
13
 2020 AO
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
14
 2020 C
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
15
 2020 L
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$
16
 2020 X
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
17
 2020 AL
LHCB ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
18
 2020
CMS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
19
 2020 AA
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit A}^{0}}$ or ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}_{{2}}^{0}}$
20
 2020 AC
CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}^{0}}$
21
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit \mu}}{{\mathit \tau}}$ , ${{\mathit e}}{{\mathit \tau}}$
22
 2020 AF
CMS ${{\mathit H}_{{2}}^{0}}$ / ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
23
 2020 AP
CMS ${{\mathit H}^{0}}$ , ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
24
 2020 Y
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$
25
 2020 Z
CMS ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit H}_{{{1,2}}}^{0}}$ or ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit A}^{0}}$ , ${{\mathit H}_{{{1,2}}}^{0}}$ / ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ , ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
26
 2019 A
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
27
 2019 AG
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
28
 2019 O
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
29
 2019 T
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
30
 2019 V
ATLS two doublet + pseudoscalar model
31
 2019 Y
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
32
 2019
CDF ${{\mathit H}_{{{1,2}}}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$
33
 2019
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
34
 2019 AE
CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$
35
 2019 AN
CMS ${{\mathit A}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit A}_{{1}}^{0}}$
36
 2019 AV
CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}^{0}}$
37
 2019 B
CMS ${{\mathit H}_{{1,2}}^{0}}$ $/$ ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$
38
 2019 BB
CMS ${{\mathit H}_{{1}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
39
 2019 BD
CMS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
40
 2019 BE
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
41
 2019 BQ
CMS ${{\mathit H}_{{{1,2}}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
42
 2019 CR
CMS ${{\mathit H}_{{2}}^{0}}$ $/$ ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
43
 2019 H
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
44
 2018 AA
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
45
 2018 AG
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
46
 2018 AH
ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}_{{2}}^{0}}$
47
 2018 AI
ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}^{0}}$
48
 2018 BF
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$
49
 2018 BU
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
50
 2018 BX
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
51
 2018 CQ
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
52
 2018 F
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$ , ${{\mathit Z}}{{\mathit Z}}$
53
 2018 AM
LHCB ${{\mathit H}_{{{1,2}}}^{0}}$ $\rightarrow$ ${{\mathit \mu}}{{\mathit \tau}}$
54
 2018 AQ
LHCB ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
55
 2018 AQ
LHCB ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ , ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
56
 2018 AF
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
57
 2018 BA
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$
58
 2018 CW
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
59
 2018 DK
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
60
 2018 DT
CMS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
61
 2018 DU
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
62
 2018 ED
CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}^{0}}$
63
 2018 EE
CMS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
64
 2018 F
CMS ${{\mathit p}}{{\mathit p}}$ , 13 TeV, ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
65
 2017
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
66
 2017 AP
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
67
 2017 AW
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
68
 2017 AZ
CMS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
69
 2017 D
CMS ${{\mathit p}}{{\mathit p}}$ , 8, 13 TeV, ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
70
 2017 R
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
71
 2017 CN
CMS ${{\mathit p}}{{\mathit p}}$ , 8 TeV, ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
72
 2017 Y
CMS ${{\mathit p}}{{\mathit p}}$ , 8, 13 TeV, ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
73
 2016 AB
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
74
 2016 AE
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$ , ${{\mathit Z}}{{\mathit Z}}$
75
 2016 H
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
76
 2016 I
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
77
 2016 AX
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$
78
 2016 C
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$
79
 2016 L
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
80
 2016 L
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
81
 2016 C
CDF ${{\mathit H}_{{1}}^{0}}$ ${{\mathit H}^{\pm}}$ $\rightarrow$ ${{\mathit H}_{{1}}^{0}}{{\mathit H}_{{1}}^{0}}{{\mathit W}^{*}}$ , ${{\mathit H}_{{1}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
82
 2016 BG
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
83
 2016 BQ
CMS ${{\mathit p}}{{\mathit p}}$ , 8 TeV, ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
84
 2016 F
CMS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit H}_{{1}}^{0}}{{\mathit H}_{{1}}^{0}}$
85
 2016 M
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
86
 2016 P
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
87
 2016 P
CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}^{0}}$
88
 2015 BK
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
89
 2015 BZ
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
90
 2015 BZ
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
91
 2015 CE
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
92
 2015 H
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
93
 2015 S
ATLS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}^{0}}$
94
 2015 AW
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$ , ${{\mathit Z}}{{\mathit Z}}$
95
 2015 BB
CMS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
96
 2015 N
CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}^{0}}$
97
 2015 O
CMS ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}^{0}}$
98
 2015 R
CMS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$
99
 2014 AP
ATLS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
100
 2014 M
ATLS ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{\pm}}{{\mathit W}^{\mp}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit W}^{\pm}}{{\mathit W}^{\mp}}$ , ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$
101
 2014 G
CMS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}^{(*)}}$
102
 2014 P
CMS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
103
 2013 P
CDF ${{\mathit H}^{'0}}$ $\rightarrow$ ${{\mathit H}^{\pm}}{{\mathit W}^{\mp}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit W}^{+}}{{\mathit W}^{-}}$
104
 2013 BJ
CMS ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
105
 2011 P
CDF ${{\mathit t}}$ $\rightarrow$ ${{\mathit b}}{{\mathit H}^{+}}$ , ${{\mathit H}^{+}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit A}^{0}}$
106
 2010
OPAL ${{\mathit H}^{0}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$
107
 2010
ALEP ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
108
 2009 V
D0 ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
$\text{none 3 - 63}$ 95 109
 2005 A
OPAL ${{\mathit A}^{0}}$ , Type II model
$>104$ 95 110
 2004 K
OPAL ${{\mathit H}^{0}}$ $\rightarrow$ 2 jets
111
 2004
DLPH ${{\mathit H}^{0}}{{\mathit V}}{{\mathit V}}$ couplings
$>110.3$ 95 112
 2004 B
L3 ${{\mathit H}^{0}}$ $\rightarrow$ 2 jets
113
 2004 F
L3 Anomalous coupling
114
 2003 F
OPAL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit Z}}$ , ${{\mathit H}^{0}}$ $\rightarrow$ any
115
 2003 G
OPAL ${{\mathit H}_{{1}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$
$>105.4$ 95 116, 117
 2002 L
ALEP ${{\mathit H}_{{1}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
$>109.1$ 95 118
 2002 M
ALEP ${{\mathit H}^{0}}$ $\rightarrow$ 2 jets or ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$
$\text{none 12 - 56}$ 95 119
 2001 E
OPAL ${{\mathit A}^{0}}$ , Type-II model
120
 2000 R
L3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit \gamma}}$ and/or ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
121
 2000 R
L3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit H}^{0}}$
122
 1998 B
RVUE Anomalous coupling
123
 1997
RVUE ($\mathit g-2)_{{{\mathit \mu}} }$
124
 1996 H
OPAL ${{\mathit Z}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit \gamma}}$
 1 AAD 2022A search for the decay chain ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 2 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.
 3 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.
 4 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.
 5 AAD 2021AZ search for production of ${{\mathit A}_{{2}}^{0}}$ decaying to ${{\mathit H}^{0}}{{\mathit A}_{{1}}^{0}}$ followed by ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ , ${{\mathit A}_{{1}}^{0}}$ $\rightarrow$ 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.
 6 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 ${{\mathit H}^{0}}{{\mathit A}_{{1}}^{0}}$ followed by ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ , ${{\mathit A}_{{1}}^{0}}$ $\rightarrow$ 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.
 7 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.
 8 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.
 9 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.
 10 TUMASYAN 2021F search for gluon fusion production of ${{\mathit H}_{{3}}^{0}}$ decaying to ${{\mathit H}^{0}}$ ${{\mathit H}_{{1,2}}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 11 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.
 12 AAD 2020AI search for ${{\mathit Z}}{{\mathit H}^{0}}$ production followed by the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 13 AAD 2020AO search for gluon fusion production of ${{\mathit H}_{{2}}^{0}}$ decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ (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.
 14 AAD 2020C combine searches for a scalar resonance decaying to ${{\mathit H}^{0}}{{\mathit H}^{0}}$ 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.
 15 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.
 16 AAD 2020X search for vector-boson-fusion production of ${{\mathit H}_{{2}}^{0}}$ decaying to ${{\mathit H}^{0}}{{\mathit H}^{0}}$ 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.
 17 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).
 18 SIRUNYAN 2020 search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ 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.
 19 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.
 20 SIRUNYAN 2020AC search for gluon-fusion production of ${{\mathit A}^{0}}$ decaying to ${{\mathit Z}}{{\mathit H}^{0}}$ 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.
 21 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.
 22 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.
 23 SIRUNYAN 2020AP search for the decay ${{\mathit H}^{0}}$ 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.
 24 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.
 25 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.
 26 AABOUD 2019A search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 27 AABOUD 2019AG search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 28 AABOUD 2019O search for a scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit W}}{{\mathit W}^{*}}$ 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.
 29 AABOUD 2019T search for a scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}^{*}}{{\mathit W}}{{\mathit W}^{*}}$ 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 ${{\mathit H}^{0}}$ .
 30 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.
 31 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.
 32 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.
 33 SIRUNYAN 2019 search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 34 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.
 35 SIRUNYAN 2019AN search for production of ${{\mathit A}_{{2}}^{0}}$ decaying to ${{\mathit H}^{0}}{{\mathit A}_{{1}}^{0}}$ followed by ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ , ${{\mathit A}_{{1}}^{0}}$ $\rightarrow$ 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.
 36 SIRUNYAN 2019AV search for a scalar resonance produced by gluon fusion or ${{\mathit b}}$ -associated production, decaying to ${{\mathit Z}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ (${{\mathit \ell}}$ = ${{\mathit e}}$ , ${{\mathit \mu}}$ ) 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.
 37 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.
 38 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).
 39 SIRUNYAN 2019BD search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 40 SIRUNYAN 2019BE combine searches for ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$ in 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV in various ${{\mathit H}^{0}}$ 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.
 41 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.
 42 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.
 43 SIRUNYAN 2019H search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ 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).
 44 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.
 45 AABOUD 2018AG search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit g}}{{\mathit g}}$ 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.
 46 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.
 47 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 ${{\mathit Z}}{{\mathit H}^{0}}$ 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.
 48 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.
 49 AABOUD 2018BU search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit W}}{{\mathit W}^{*}}$ 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.
 50 AABOUD 2018BX search for associated production of ${{\mathit W}}{{\mathit H}^{0}}$ or ${{\mathit Z}}{{\mathit H}^{0}}$ followed by the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 51 AABOUD 2018CQ search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ 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.
 52 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.
 53 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.
 54 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).
 55 AAIJ 2018AQ search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ , 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).
 56 SIRUNYAN 2018AF search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 57 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.
 58 SIRUNYAN 2018CW search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 59 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.
 60 SIRUNYAN 2018DT search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 61 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.
 62 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 ${{\mathit Z}}{{\mathit H}^{0}}$ 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.
 63 SIRUNYAN 2018EE search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ 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.
 64 SIRUNYAN 2018F search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}}$ ${{\mathit b}}{{\overline{\mathit b}}}$ 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.
 65 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.
 66 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.
 67 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.
 68 KHACHATRYAN 2017AZ search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ , ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ , 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.
 69 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.
 70 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.
 71 SIRUNYAN 2017CN search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ 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.
 72 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.
 73 AABOUD 2016AB search for associated production of ${{\mathit W}}{{\mathit H}^{0}}$ with the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 74 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.
 75 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.
 76 AABOUD 2016I search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ in 3.2 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. See their Fig. 10(c) for limits on cross section times branching ratios for ${\mathit m}_{{{\mathit H}_{{2}}^{0}}}$ = $0.5 - 3$ TeV.
 77 AAD 2016AX search for production of a heavy ${{\mathit H}^{0}}$ state decaying to ${{\mathit Z}}{{\mathit Z}}$ in the final states ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ , ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \nu}}{{\overline{\mathit \nu}}}$ , ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit q}}{{\overline{\mathit q}}}$ , 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 ${\mathit \sigma (}{{\mathit H}^{0}}{)}$ B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$ ) for ${\mathit m}_{{{\mathit H}^{0}}}$ ranging from 140 GeV to 1000 GeV.
 78 AAD 2016C search for production of a heavy ${{\mathit H}^{0}}$ 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 ${\mathit \sigma (}{{\mathit H}^{0}}{)}$ B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$ ) for ${\mathit m}_{{{\mathit H}^{0}}}$ ranging from 300 GeV to 1000 or 1500 GeV with various assumptions on the total width of ${{\mathit H}^{0}}$ .
 79 AAD 2016L search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \gamma}}$ in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. See their Fig. 4 (upper right) for limits on cross section times branching ratios (normalized to the SM ${{\mathit H}^{0}}$ cross section) for ${\mathit m}_{{{\mathit A}^{0}}}$ = $10 - 60$ GeV.
 80 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.
 81 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.
 82 KHACHATRYAN 2016BG search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 83 KHACHATRYAN 2016BQ search for a resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 84 KHACHATRYAN 2016F search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit H}_{{1}}^{0}}{{\mathit H}_{{1}}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ 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.
 85 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.
 86 KHACHATRYAN 2016P search for gluon fusion production of an ${{\mathit H}_{{2}}^{0}}$ decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ 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.
 87 KHACHATRYAN 2016P search for gluon fusion production of an ${{\mathit A}^{0}}$ decaying to ${{\mathit Z}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ 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.
 88 AAD 2015BK search for production of a heavy ${{\mathit H}_{{2}}^{0}}$ decaying to ${{\mathit H}^{0}}{{\mathit H}^{0}}$ 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( ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$ ) for ${\mathit m}_{{{\mathit H}_{{2}}^{0}}}$ = $500 - 1500$ GeV with ${\Gamma}_{{\mathit H}_{{2}}^{0}}$ = 1 GeV.
 89 AAD 2015BZ search for the decay ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ (${\mathit m}_{{{\mathit H}^{0}}}$ = 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.
 90 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.
 91 AAD 2015CE search for production of a heavy ${{\mathit H}_{{2}}^{0}}$ decaying to ${{\mathit H}^{0}}{{\mathit H}^{0}}$ 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( ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$ ) $<$ $2.1 - 0.011$ pb (95$\%$ CL) is given for ${\mathit m}_{{{\mathit H}_{{2}}^{0}}}$ = $260 - 1000$ GeV. See their Fig. 6.
 92 AAD 2015H search for production of a heavy ${{\mathit H}_{{2}}^{0}}$ decaying to ${{\mathit H}^{0}}{{\mathit H}^{0}}$ 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( ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit H}^{0}}$ ) $<$ $3.5 - 0.7$ pb is given for ${\mathit m}_{{{\mathit H}_{{2}}^{0}}}$ = $260 - 500$ GeV at 95$\%$ CL. See their Fig. 3.
 93 AAD 2015S search for production of ${{\mathit A}^{0}}$ decaying to ${{\mathit Z}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ , ${{\mathit \nu}}{{\overline{\mathit \nu}}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 94 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.
 95 KHACHATRYAN 2015BB search for production of a resonance ${{\mathit H}^{0}}$ 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 ${\mathit m}_{{{\mathit H}^{0}}}$ = $150 - 850$ GeV.
 96 KHACHATRYAN 2015N search for production of ${{\mathit A}^{0}}$ decaying to ${{\mathit Z}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 97 KHACHATRYAN 2015O search for production of a high-mass narrow resonance ${{\mathit A}^{0}}$ decaying to ${{\mathit Z}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ 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.
 98 KHACHATRYAN 2015R search for a narrow scalar resonance decaying to ${{\mathit H}^{0}}$ ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}{{\mathit b}}{{\overline{\mathit b}}}$ 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.
 99 AAD 2014AP search for a second ${{\mathit H}^{0}}$ 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 ${\mathit m}_{{{\mathit H}^{0}}}$ = $65 - 600$ GeV.
 100 AAD 2014M search for the decay cascade ${{\mathit H}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}^{\pm}}{{\mathit W}^{\mp}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit W}^{\pm}}{{\mathit W}^{\mp}}$ , ${{\mathit H}^{0}}$ 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.
 101 CHATRCHYAN 2014G search for a second ${{\mathit H}^{0}}$ 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.
 102 KHACHATRYAN 2014P search for a second ${{\mathit H}^{0}}$ 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.
 103 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 ${{\mathit H}^{0}}$ via the decay chain ${{\mathit H}^{'0}}$ $\rightarrow$ ${{\mathit H}^{\pm}}{{\mathit W}^{\mp}}$ , ${{\mathit H}^{\pm}}$ $\rightarrow$ ${{\mathit W}^{\pm}}{{\mathit H}^{0}}$ , ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ 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 ${\mathit m}_{{{\mathit H}^{0}}}$ = 126 GeV.
 104 CHATRCHYAN 2013BJ search for ${{\mathit H}^{0}}$ production in the decay chain ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ , ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ 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.
 105 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.
 106 ABBIENDI 2010 search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit H}^{0}}$ with the decay chain ${{\mathit H}^{0}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ , ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$ + (${{\mathit \gamma}}$ 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 ${\mathit m}_{{{\mathit H}^{0}}}$ of 108.4 (107.0) GeV (95$\%$ CL) is obtained for SM ${{\mathit Z}}{{\mathit H}^{0}}$ cross section and B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ ) = 1.
 107 SCHAEL 2010 search for the process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit Z}}$ followed by the decay chain ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ with ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ , ${{\mathit \nu}}{{\overline{\mathit \nu}}}$ at $\mathit E_{{\mathrm {cm}}}$ = $183 - 209$ GeV. For a ${{\mathit H}^{0}}{{\mathit Z}}{{\mathit Z}}$ coupling equal to the SM value, B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ ) = B( ${{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ ) = 1, and ${\mathit m}_{{{\mathit A}^{0}}}$ = $4 - 10$ GeV, ${\mathit m}_{{{\mathit H}^{0}}}$ up to 107 GeV is excluded at 95$\%$ CL.
 108 ABAZOV 2009V search for ${{\mathit H}^{0}}$ production followed by the decay chain ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ 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 $\sigma ({{\mathit H}^{0}}$ )$\cdot{}$B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ ) for ${\mathit m}_{{{\mathit A}^{0}}}$ = $3.6 - 19$ GeV.
 109 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 ${{\mathit H}_{{1}}^{0}}$ $\rightarrow$ ${{\mathit A}^{0}}{{\mathit A}^{0}}$ .
 110 ABBIENDI 2004K search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit Z}}$ with ${{\mathit H}^{0}}$ decaying to two jets of any flavor including ${{\mathit g}}{{\mathit g}}$ . The limit is for SM production cross section with B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit j}}{{\mathit j}}$ ) = 1.
 111 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.
 112 ACHARD 2004B search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit Z}}$ with ${{\mathit H}^{0}}$ 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( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit j}}{{\mathit j}}$ ) = 1.
 113 ACHARD 2004F search for ${{\mathit H}^{0}}$ with anomalous coupling to gauge boson pairs in the processes ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit \gamma}}$ , ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit H}^{0}}$ , ${{\mathit H}^{0}}{{\mathit Z}}$ with decays ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit f}}{{\overline{\mathit f}}}$ , ${{\mathit \gamma}}{{\mathit \gamma}}$ , ${{\mathit Z}}{{\mathit \gamma}}$ , and ${{\mathit W}^{*}}{{\mathit W}}$ at $\mathit E_{{\mathrm {cm}}}$ = $189 - 209$ GeV. See paper for limits.
 114 ABBIENDI 2003F search for ${{\mathit H}^{0}}$ $\rightarrow$ anything in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit Z}}$ , 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 ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ or photons. Scenarios with large width or continuum ${{\mathit H}^{0}}$ mass distribution are considered. See their Figs. 11--14 for the results.
 115 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.
 116 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 ${{\mathit H}^{0}}$ with SM production cross section and B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit f}}{{\overline{\mathit f}}}$ )=0 for all fermions ${{\mathit f}}$ .
 117 For B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ )=1, ${\mathit m}_{{{\mathit H}^{0}}}>113.1$ GeV is obtained.
 118 HEISTER 2002M search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit Z}}$ , assuming that ${{\mathit H}^{0}}$ decays to ${{\mathit q}}{{\overline{\mathit q}}}$ , ${{\mathit g}}{{\mathit g}}$ , or ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ only. The limit assumes SM production cross section.
 119 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.
 120 ACCIARRI 2000R search for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit \gamma}}$ with ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ , ${{\mathit Z}}{{\mathit \gamma}}$ , 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.
 121 ACCIARRI 2000R search for the two-photon type processes ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit H}^{0}}$ with ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ or ${{\mathit \gamma}}{{\mathit \gamma}}$ . See their Fig.$~$4 for limits on $\Gamma\mathrm {( {{\mathit H}^{0}} \rightarrow {{\mathit \gamma}} {{\mathit \gamma}} )}\cdot{}$B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ or ${{\mathit b}}{{\overline{\mathit b}}}$ ) for ${\mathit m}_{{{\mathit H}^{0}}}=70 - 170$ GeV.
 122 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.$~$1 and$~$2 for limits on the anomalous couplings.
 123 KRAWCZYK 1997 analyse the muon anomalous magnetic moment in a two-doublet Higgs model (with type$~$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.
 124 ALEXANDER 1996H give B( ${{\mathit Z}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit \gamma}}$ )${\times }$B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}$ ) $<1 - 4 \times 10^{-5}$ (95$\%$CL) and B( ${{\mathit Z}}$ $\rightarrow$ ${{\mathit H}^{0}}{{\mathit \gamma}}$ )${\times }$B( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ ) $<0.7 - 2 \times 10^{-5}$ (95$\%$CL) in the range 20 $<{\mathit m}_{{{\mathit H}^{0}}}$ $<$80 GeV.
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 SIRUNYAN 2019AN
EPJ C79 280 Search for dark matter produced in association with a Higgs boson decaying to a pair of bottom quarks in proton?proton collisions at $\sqrt{s}=13\,\text {Te}\text {V}$
 SIRUNYAN 2019BQ
PL B796 131 A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13 TeV
 SIRUNYAN 2019BD
PL B795 398 Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two muons and two b quarks in pp collisions at 13 TeV
 SIRUNYAN 2019AV
EPJ C79 564 Search for a heavy pseudoscalar boson decaying to a Z and a Higgs boson at $\sqrt{s} =$ 13 TeV
 AABOUD 2018AA
PR D98 032015 Search for heavy resonances decaying to a photon and a hadronically decaying $Z/W/H$ boson in $pp$ collisions at $\sqrt{s}=13$ $\mathrm{TeV}$ with the ATLAS detector
 AABOUD 2018AI
JHEP 1803 174 Search for heavy resonances decaying into a $W$ or $Z$ boson and a Higgs boson in final states with leptons and $b$-jets in 36 fb$^{-1}$ of $\sqrt s = 13$ TeV $pp$ collisions with the ATLAS detector
 Also
JHEP 1811 051 (errat.) Search for heavy resonances decaying into a $W$ or $Z$ boson and a Higgs boson in final states with leptons and $b$-jets in 36 fb$^{-1}$ of $\sqrt s = 13$ TeV $pp$ collisions with the ATLAS detector
 AABOUD 2018AH
PL B783 392 Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in the $\ell\ell bb$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
 AABOUD 2018F
PL B777 91 Search for Diboson Resonances with Boson-Tagged Jets in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 AABOUD 2018BF
EPJ C78 293 Search for heavy ZZ resonances in the $\ell ^+\ell ^-\ell ^+\ell ^-$ and $\ell ^+\ell ^-\nu \bar{\nu }$ final states using proton?proton collisions at $\sqrt{s}= 13$   $\text {TeV}$ with the ATLAS detector
 AABOUD 2018AG
PL B782 750 Search for Higgs boson decays into pairs of light (pseudo)scalar particles in the $\gamma\gamma jj$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
 AABOUD 2018CQ
PRL 121 191801 Search for resonant and non-resonant Higgs boson pair production in the ${b\bar{b}\tau^+\tau^-}$ decay channel in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
 AABOUD 2018BU
EPJ C78 1007 Search for Higgs boson pair production in the $\gamma\gamma WW^{*}$ channel using $pp$ collision data recorded at $\sqrt{s} = 13$ TeV with the ATLAS detector
 AABOUD 2018BX
JHEP 1810 031 Search for the Higgs boson produced in association with a vector boson and decaying into two spin-zero particles in the $H \rightarrow aa \rightarrow 4b$ channel in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
 AAIJ 2018AQ
JHEP 1809 147 Search for a dimuon resonance in the $\Upsilon$ mass region
 AAIJ 2018AM
EPJ C78 1008 Search for lepton-flavour-violating decays of Higgs-like bosons
 SIRUNYAN 2018DT
PL B785 462 Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two b quarks and two $\tau$ leptons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
 SIRUNYAN 2018F
JHEP 1801 054 Search for Resonant and Nonresonant Higgs Boson Pair Production in the ${\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}{{\mathit \ell}}{{\mathit \nu}}{{\mathit \ell}}{{\mathit \nu}}$ Final State in Proton-Proton Collisions at $\sqrt {s }$ = 13 TeV
 SIRUNYAN 2018CW
JHEP 1808 152 Search for resonant pair production of Higgs bosons decaying to bottom quark-antiquark pairs in proton-proton collisions at 13 TeV
 SIRUNYAN 2018DK
JHEP 1809 148 Search for Z$\gamma$ resonances using leptonic and hadronic final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
 SIRUNYAN 2018DU
PR D98 092001 Search for physics beyond the standard model in high-mass diphoton events from proton-proton collisions at $\sqrt{s} =$ 13 TeV
 SIRUNYAN 2018AF
PL B781 244 Search for a massive resonance decaying to a pair of Higgs bosons in the four b quark final state in proton-proton collisions at $\sqrt{s}=$ 13 TeV
 SIRUNYAN 2018ED
JHEP 1811 172 Search for heavy resonances decaying into a vector boson and a Higgs boson in final states with charged leptons, neutrinos and b quarks at $\sqrt{s}=13$ TeV
 SIRUNYAN 2018BA
JHEP 1806 127 Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at $\sqrt{s}=13$ TeV
 Also
JHEP 1903 128 (errat.) Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at $\\sqrt{s}=13$ TeV
 SIRUNYAN 2018EE
JHEP 1811 018 Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state of two muons and two $\tau$ leptons in proton-proton collisions at $\sqrt{s}=13$ TeV
 AABOUD 2017AP
PL B775 105 Search for New Phenomena in High-Mass Diphoton Final States using 37 ${\mathrm {fb}}{}^{-1}$ of Proton-Proton Collisions Collected at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 AABOUD 2017
PL B764 11 Search for Heavy Resonances Decaying to a ${{\mathit Z}}$ Boson and a Photon in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ =13 TeV with the ATLAS Detector
 AABOUD 2017AW
JHEP 1710 112 Searches for the ${{\mathit Z}}{{\mathit \gamma}}$ Decay Mode of the Higgs Boson and for New High-Mass Resonances in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 KHACHATRYAN 2017AZ
JHEP 1710 076 Search for Light Bosons in Decays of the 125 GeV Higgs Boson in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV
 KHACHATRYAN 2017R
PL B767 147 Search for High-Mass Diphoton Resonances in Proton-Proton Collisions at 13 TeV and Combination with 8 TeV Search
 KHACHATRYAN 2017D
JHEP 1701 076 Search for High-Mass ${{\mathit Z}}{{\mathit \gamma}}$ Resonances in ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \gamma}}$ and ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \gamma}}$ Final States in Proton-Proton Collisions at $\sqrt {s }$ = 8 and 13 TeV
 SIRUNYAN 2017Y
PL B772 363 Search for High-Mass ${{\mathit Z}}{{\mathit \gamma}}$ Resonances in Proton-Proton Collisions at $\sqrt {s }$ = 8 and 13 TeV using Jet Substructure Techniques
 SIRUNYAN 2017CN
PR D96 072004 Search for Higgs Boson Pair Production in the ${\mathit {\mathit b}}{\mathit {\mathit b}}{{\mathit \tau}}{{\mathit \tau}}$ Final State in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV
 AABOUD 2016AE
JHEP 1609 173 Searches for Heavy Diboson Resonances in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 AABOUD 2016AB
EPJ C76 605 Search for the Higgs Boson Produced in Association with a ${{\mathit W}}$ Boson and Decaying to Four ${\mathit {\mathit b}}$-Quarks via Two Spin-Zero Particles in ${{\mathit p}}{{\mathit p}}$ Collisions at 13 TeV with the ATLAS Detector
 AABOUD 2016I
PR D94 052002 Search for Pair Production of Higgs Bosons in the ${\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}{\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ Final State using Proton-Proton Collisions at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 AABOUD 2016H
JHEP 1609 001 Search for Resonances in Diphoton Events at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
EPJ C76 210 Search for New Phenomena in Events with at Least Three Photons Collected in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
EPJ C76 45 Search for an Additional, Heavy Higgs Boson in the ${{\mathit H}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}}$ Decay Channel at $\sqrt {s }$ = 8 TeV in ${{\mathit p}}{{\mathit p}}$ Collision Data with the ATLAS Detector
JHEP 1601 032 Search for a High-Mass Higgs Boson Decaying to a ${{\mathit W}}$ Boson Pair in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
 AALTONEN 2016C
PR D93 112010 Search for a Low-Mass Neutral Higgs Boson with Suppressed Couplings to Fermions Using Events with Multiphoton Final States
 KHACHATRYAN 2016F
JHEP 1601 079 Search for a Very Light NMSSM Higgs Boson Produced in Decays of the 125 GeV Scalar Boson and Decaying into ${{\mathit \tau}}$ leptons in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV
 KHACHATRYAN 2016BQ
PR D94 052012 Search for Two Higgs Bosons in Final States Containing Two Photons and Two Bottom Quarks in Proton-Proton Collisions at 8 TeV
 KHACHATRYAN 2016P
PL B755 217 Searches for a Heavy Scalar Boson ${{\mathit H}}$ Decaying to a Pair of 125 GeV Higgs Bosons ${{\mathit h}}{{\mathit h}}$ or for a Heavy Pseudoscalar Boson ${{\mathit A}}$ Decaying to ${{\mathit Z}}{{\mathit h}}$ , in the Final States with ${{\mathit h}}$ $\rightarrow$ ${{\mathit \tau}}{{\mathit \tau}}$
 KHACHATRYAN 2016BG
EPJ C76 371 Search for Heavy Resonances Decaying to Two Higgs Bosons in Final States Containing Four ${\mathit {\mathit b}}$ Quarks
 KHACHATRYAN 2016M
PRL 117 051802 Search for Resonant Production of High-Mass Photon Pairs in Proton-Proton Collisions at $\sqrt {s }$ = 8 and 13 TeV
PL B744 163 Search for a $\mathit CP$-odd Higgs Boson Decaying to $\mathit Zh$ in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
PR D92 052002 Search for Higgs Bosons Decaying to ${{\mathit a}}{{\mathit a}}$ in the ${{\mathit \mu}}{{\mathit \mu}}{{\mathit \tau}}{{\mathit \tau}}$ Final State in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Experiment
EPJ C75 412 Search for Higgs Boson Pair Production in the ${\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}{\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ Final State from ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
PR D92 092004 Searches for Higgs Boson Pair Production in the ${{\mathit h}}$ ${{\mathit h}}$ $\rightarrow$ ${\mathit {\mathit b}}{\mathit {\mathit b}}{{\mathit \tau}}{{\mathit \tau}}$ , ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit W}}{{\mathit W}^{*}}$ , ${{\mathit \gamma}}{{\mathit \gamma}}{\mathit {\mathit b}}{\mathit {\mathit b}}$, ${\mathit {\mathit b}}{\mathit {\mathit b}}{\mathit {\mathit b}}{\mathit {\mathit b}}$ Channels with the ATLAS Detector
PRL 114 081802 Search For Higgs Boson Pair Production in the ${{\mathit \gamma}}{{\mathit \gamma}}{\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ Final State using ${{\mathit p}}{{\mathit p}}$ Collision Data at $\sqrt {s }$ = 8 TeV from the ATLAS Detector
 KHACHATRYAN 2015AW
JHEP 1510 144 Search for a Higgs Boson in the Mass Range from 145 to 1000 GeV Decaying to a Pair of ${{\mathit W}}$ or ${{\mathit Z}}$ Bosons
 KHACHATRYAN 2015BB
PL B750 494 Search for Diphoton Resonances in the Mass Range from 150 to 850 GeV in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV
 KHACHATRYAN 2015R
PL B749 560 Search for Resonant Pair Production of Higgs Bosons Decaying to Two Bottom Quark-Antiquark Pairs in Proton-Proton Collisions at 8 TeV
 KHACHATRYAN 2015N
PL B748 221 Search for a Pseudoscalar Boson Decaying into a ${{\mathit Z}}$ Boson and the 125 GeV Higgs Boson in ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ Final States
 KHACHATRYAN 2015O
PL B748 255 Search for Narrow High-Mass Resonances in Proton$−$Proton Collisions at$\sqrt {s }$ = 8 TeV Decaying to a ${{\mathit Z}}$ and a Higgs Boson
PR D89 032002 Search for a Multi-Higgs-Boson Cascade in ${{\mathit W}^{+}}{{\mathit W}^{-}}{\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ Events with the ATLAS Detector in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV
PRL 113 171801 Search for Scalar Diphoton Resonances in the Mass Range $65 - 600$ GeV with the ATLAS Detector in ${{\mathit p}}{{\mathit p}}$ Collision Data at $\sqrt {s }$ = 8 TeV
 CHATRCHYAN 2014G
JHEP 1401 096 Measurement of Higgs Boson Production and Properties in the ${{\mathit W}}{{\mathit W}}$ Decay Channel with Leptonic Final States
 KHACHATRYAN 2014P
EPJ C74 3076 Observation of the Diphoton Decay of the Higgs Boson and Measurement of its Properties
 AALTONEN 2013P
PRL 110 121801 Search for a Two-Higgs-Boson Doublet Using a Simplified Model in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
 CHATRCHYAN 2013BJ
PL B726 564 Search for a Non-Standard-Model Higgs Boson Decaying to a Pair of New Light Bosons in Four-Muon Final States
 AALTONEN 2011P
PRL 107 031801 Search for a Very Light $\mathit CP$-Odd Higgs Boson in Top Quark Decays from ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
 ABBIENDI 2010
PL B682 381 Search for Invisibly Decaying Higgs Bosons in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}^{0}}{{\mathit h}^{0}}$ Production at $\sqrt {s }$ = $183 - 209$ GeV
 SCHAEL 2010
JHEP 1005 049 Search for Neutral Higgs Bosons Decaying into Four Taus at LEP2
 ABAZOV 2009V
PRL 103 061801 Search for Next-to-Minimal Supersymmetric Higgs Bosons in the ${{\mathit h}}$ $\rightarrow$ ${{\mathit a}}{{\mathit a}}$ $\rightarrow$ ${{\mathit \mu}}{{\mathit \mu}}{{\mathit \mu}}{{\mathit \mu}}$ , ${{\mathit \mu}}{{\mathit \mu}}{{\mathit \tau}}{{\mathit \tau}}$ Channels using ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96$~$TeV
 ABBIENDI 2005A
EPJ C40 317 Flavour-Independent $\mathit h{}^{0}\mathit A{}^{0}$ Search and Two Higgs Doublet Model Interpretation of Neutral Higgs Boson Searches at LEP
 ABBIENDI 2004K
PL B597 11 Flavor Independent Search for Higgs Bosons Decaying into Hadronic Final States in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Collisions at LEP
 ABDALLAH 2004
EPJ C32 145 Final Results from DELPHI on the Searches for SM and MSSM Neutral Higgs Bosons
 ACHARD 2004F
PL B589 89 Search for Anomalous Couplings in the Higgs Sector at LEP
 ACHARD 2004B
PL B583 14 Flavor Independent Search for Neutral Higgs Bosons at LEP
 ABBIENDI 2003G
EPJ C27 483 Search for a Low Mass $\mathit CP$ Odd Higgs Boson in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Collisions with the OPAL Detector at LEP-2
 ABBIENDI 2003F
EPJ C27 311 Decay Mode Independent Searches for New Scalar Bosons with the OPAL Detector at LEP
 HEISTER 2002L
PL B544 16 Search for ${{\mathit \gamma}}{{\mathit \gamma}}$ Decays on a Higgs Boson in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Collisions at $\sqrt {s }$ up to 209-GeV
 HEISTER 2002M
PL B544 25 A Flavor Independent Higs Boson Search in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Collisions at $\sqrt {s }$ up to 209-GeV
 ABBIENDI 2001E
EPJ C18 425 Two Higgs Doublet Model and Model Independent Interpretation of Neutral Higgs Boson Searches
 ACCIARRI 2000R
PL B489 102 Search for Anomalous Couplings in the Higgs Sector at LEP
 GONZALEZ-GARCIA 1998B
PR D57 7045 Search for Nonstandard Higgs Boson in Diphoton Events at ${{\mathit p}}$ ${{\overline{\mathit p}}}$ Collisions
 KRAWCZYK 1997
PR D55 6968 Constraining te Two Higgs Doublet Model by Present and Future ($\mathit g-2)_{{{\mathit \mu}} }$ Data
 ALEXANDER 1996H
ZPHY C71 1 Search for a Narrow Resonance in ${{\mathit Z}^{0}}$ Decays into Hadrons and Isolated Photons