# Limits for other ${{\boldsymbol Z}^{\,'}}$ INSPIRE search

VALUE (GeV) CL% DOCUMENT ID TECN  COMMENT
$> 1300$ 95 1
 2018 B
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}}$
$\text{none 1200 - 2800}$ 95 2
 2018 F
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}}$
$\bf{>2900}$ 95 3
 2017 AK
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}$
$\text{none 1100 - 2600}$ 95 4
 2017 AO
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit h}}{{\mathit Z}}$
$>2300$ 95 5
 2017 AK
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}}$ , ${{\mathit h}}{{\mathit Z}}$
$\bf{> 2500}$ 95 6
 2017 Q
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
$>1190$ 95 7
 2017 R
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit h}}{{\mathit Z}}$
$\text{none 1210 - 2260}$ 95 7
 2017 R
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit h}}{{\mathit Z}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
8
 2018 G
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}$
$> 1580$ 95 9
 2017 B
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit h}}{{\mathit Z}}$
10
 2017 AX
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit \ell}}{{\mathit \ell}}{{\mathit \ell}}{{\mathit \ell}}$
11
 2017 U
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit h}}{{\mathit Z}}$
$> 1700$ 95 12
 2017 A
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}}$
13
 2017 AP
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit h}}{{\mathit A}}$
14
 2017 T
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}$
15
 2017 V
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit T}}{{\mathit t}}$
$\text{none 1100 - 1500}$ 95 16
 2016
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$
17
 2016 L
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit a}}{{\mathit \gamma}}$ , ${{\mathit a}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$
$\text{none 1500 - 2600}$ 95 18
 2016 S
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}$
$\text{none 1000 - 1100, none 1300 - 1500}$ 95 19
 2016 AP
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit h}}{{\mathit Z}}$
$> 2400$ 95 20
 2016 E
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
21
 2015 AO
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
22
 2015 AT
ATLS monotop
23
 2015 CD
ATLS ${{\mathit h}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}^{\,'}}$ , ${{\mathit Z}^{\,'}}{{\mathit Z}^{\,'}}$ ; ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$
24
 2015 F
CMS monotop
25
 2015 O
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit h}}{{\mathit Z}}$
26
 2014 AT
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit \gamma}}$
27
 2014 A
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit V}}{{\mathit V}}$
28
 2014
RVUE Electroweak
$\text{none 500 - 1740}$ 95 29
 2013 AQ
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
$\text{>1320 or 1000 - 1280}$ 95 30
 2013 G
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
$>915$ 95 30
 2013 A
CDF ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
$> 1300$ 95 31
 2013 AP
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
$> 2100$ 95 30
 2013 BM
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
32
 2012 BV
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
33
 2012 K
ATLS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
34
 2012 AR
CDF Chromophilic
35
 2012 N
CDF ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\overline{\mathit t}}}{{\mathit u}}$
$> 835$ 95 36
 2012 R
D0 ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
37
 2012 AI
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit u}}}$
38
 2012 AQ
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
$> 1490$ 95 30
 2012 BL
CMS ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
39
CDF ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
40
 2011 AE
CDF ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
41
 2011 O
CMS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit t}}{{\mathit t}}$
42
 2008 D
CDF ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
42
 2008 Y
CDF ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
42
 2008 AA
D0 ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$
43
 2004 A
D0 Repl. by ABAZOV 2008AA
44
 2003 B
COSM Nucleosynthesis; light ${{\mathit \nu}_{{R}}}$
45
 2000
RVUE $\mathit E_{6}$-motivated
46
 1998
RVUE $\mathit E_{6}$-motivated
47
 1997 G
CDF ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\overline{\mathit q}}}{{\mathit q}}$
1  AABOUD 2018B search for resonances decaying to ${{\mathit W}}{{\mathit W}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The quoted limit is for heavy-vector-triplet ${{\mathit Z}^{\,'}}$ with ${{\mathit g}_{{V}}}$ = 1. See their Fig.11 for limits on $\sigma \cdot{}{{\mathit B}}$.
2  AABOUD 2018F search for resonances decaying to ${{\mathit W}}{{\mathit W}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The quoted limit is for heavy-vector-triplet ${{\mathit Z}^{\,'}}$ with ${{\mathit g}_{{V}}}$ = 3. The limit becomes $\mathit M_{{{\mathit Z}^{\,'}}}$ $>$ 2200 GeV for ${{\mathit g}_{{V}}}$ = 1. If we assume $\mathit M_{{{\mathit Z}^{\,'}}}$ = $\mathit M_{{{\mathit W}^{\,'}}}$, the limit increases $\mathit M_{{{\mathit Z}^{\,'}}}$ $>$ 3500 GeV and $\mathit M_{{{\mathit Z}^{\,'}}}$ $>$ 3100 GeV for ${{\mathit g}_{{V}}}$ = 3 and ${{\mathit g}_{{V}}}$ = 1, respectively. See their Fig.5 for limits on $\sigma \cdot{}{{\mathit B}}$.
3  AABOUD 2017AK search for a new resonance decaying to dijets in $pp$ collisions at $\sqrt {s }$ = 13 TeV. The limit quoted above is for a leptophobic ${{\mathit Z}^{\,'}}$ boson having axial-vector coupling strength with quarks ${{\mathit g}_{{q}}}$ = 0.2. The limit is 2100 GeV if ${{\mathit g}_{{q}}}$ = 0.1.
4  AABOUD 2017AO search for resonances decaying to ${{\mathit h}}{{\mathit Z}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit quoted above is for a ${{\mathit Z}^{\,'}}$ in the heavy-vector-triplet model with ${{\mathit g}_{{V}}}$ = 3. See their Fig.4 for limits on $\sigma \cdot{}{{\mathit B}}$.
5  SIRUNYAN 2017AK search for resonances decaying to ${{\mathit W}}{{\mathit W}}$ or ${{\mathit h}}{{\mathit Z}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 and 13 TeV. The quoted limit is for heavy-vector-triplet ${{\mathit Z}^{\,'}}$ with ${{\mathit g}_{{V}}}$ = 3. The limit becomes $\mathit M_{{{\mathit Z}^{\,'}}}$ $>$ 2200 GeV for ${{\mathit g}_{{V}}}$ =1. If we assume $\mathit M_{{{\mathit Z}^{\,'}}}$ = $\mathit M_{{{\mathit W}^{\,'}}}$, the limit increases $\mathit M_{{{\mathit Z}^{\,'}}}$ $>$ 2400 GeV for both ${{\mathit g}_{{V}}}$ = 3 and ${{\mathit g}_{{V}}}$ = 1. See their Fig.1 and 2 for limits on ${{\mathit \sigma}}\cdot{}{{\mathit B}}$.
6  SIRUNYAN 2017Q search for a resonance decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit quoted above is for a resonance with relative width $\Gamma _{{{\mathit Z}^{\,'}}}$ $/$ $\mathit M_{{{\mathit Z}^{\,'}}}$ = 0.01. Limits for wider resonances are available. See their Fig.6 for limits on $\sigma \cdot{}\mathit B$.
7  SIRUNYAN 2017R search for resonances decaying to ${{\mathit h}}{{\mathit Z}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The quoted limit is for heavy-vector-triplet ${{\mathit Z}^{\,'}}$ with ${{\mathit g}_{{V}}}$ = 3. Mass regions $\mathit M_{{{\mathit Z}^{\,'}}}$ $<$ 1150 GeV and 1250 GeV $<$ $\mathit M_{{{\mathit Z}^{\,'}}}$ $<$ 1670 GeV are excluded for ${{\mathit g}_{{V}}}$ = 1. If we assume $\mathit M_{{{\mathit Z}^{\,'}}}$ = $\mathit M_{{{\mathit W}^{\,'}}}$, the excluded mass regions are 1000 $<$ $\mathit M_{{{\mathit Z}^{\,'}}}$ $<$ 2500 GeV and 2760 $<$ $\mathit M_{{{\mathit Z}^{\,'}}}$ $<$ 3300 GeV for ${{\mathit g}_{{V}}}$ = 3; 1000 $<$ $\mathit M_{{{\mathit Z}^{\,'}}}$ $<$ 2430 GeV and 2810 $<$ $\mathit M_{{{\mathit Z}^{\,'}}}$ $<$ 3130 GeV for ${{\mathit g}_{{V}}}$ = 1. See their Fig.5 for limits on ${{\mathit \sigma}}\cdot{}{{\mathit B}}$.
8  SIRUNYAN 2018G search for a new resonance decaying to dijets in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV in the mass range $50 - 300$ GeV. See their Fig.7 for limits in the mass-coupling plane.
9  AABOUD 2017B search for resonances decaying to ${{\mathit h}}{{\mathit Z}}$ ( ${{\mathit h}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ , ${{\mathit c}}{{\overline{\mathit c}}}$ ; ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ , ${{\mathit \nu}}{{\overline{\mathit \nu}}}$ ) in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The quoted limit is for heavy-vector-triplet ${{\mathit Z}^{\,'}}$ with ${{\mathit g}_{{V}}}$ = 3. The limit becomes ${{\mathit M}}_{{{\mathit Z}^{\,'}}}>$ 1490 GeV for ${{\mathit g}_{{V}}}$ = 1. If we assume ${{\mathit M}}_{{{\mathit Z}^{\,'}}}$ = ${{\mathit M}}_{{{\mathit W}^{\,'}}}$, the limit increases ${{\mathit M}}_{{{\mathit Z}^{\,'}}}>$ 2310 GeV and ${{\mathit M}}_{{{\mathit Z}^{\,'}}}>$ 1730 GeV for ${{\mathit g}_{{V}}}$ = 3 and ${{\mathit g}_{{V}}}$ = 1, respectively. See their Fig.3 for limits on ${{\mathit \sigma}}\cdot{}{{\mathit B}}$.
10  KHACHATRYAN 2017AX search for lepto-phobic resonances decaying to four leptons in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV.
11  KHACHATRYAN 2017U search for resonances decaying to ${{\mathit h}}{{\mathit Z}}$ ( ${{\mathit h}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ ; ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ , ${{\mathit \nu}}{{\overline{\mathit \nu}}}$ ) in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit on the heavy-vector-triplet model is $\mathit M_{{{\mathit Z}^{\,'}}}$ = $\mathit M_{{{\mathit W}^{\,'}}}$ $>$ 2 TeV for ${{\mathit g}_{{V}}}$ = 3, in which constraints from the ${{\mathit W}^{\,'}}$ $\rightarrow$ ${{\mathit h}}{{\mathit W}}$ ( ${{\mathit h}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ ; ${{\mathit W}}$ $\rightarrow$ ${{\mathit \ell}}{{\mathit \nu}}$ ) are combined. See their Fig.3 and Fig.4 for limits on $\sigma \cdot{}\mathit B$.
12  SIRUNYAN 2017A search for resonances decaying to ${{\mathit W}}{{\mathit W}}$ with ${{\mathit W}}$ ${{\mathit W}}$ $\rightarrow$ ${{\mathit \ell}}{{\mathit \nu}}{{\mathit q}}{{\overline{\mathit q}}}$ , ${{\mathit q}}{{\overline{\mathit q}}}{{\mathit q}}{{\overline{\mathit q}}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The quoted limit is for heavy-vector-triplet ${{\mathit Z}^{\,'}}$ with ${{\mathit g}_{{V}}}$ = 3. The limit becomes $\mathit M_{{{\mathit Z}^{\,'}}}$ $>$ 1600 GeV for ${{\mathit g}_{{V}}}$ = 1. If we assume $\mathit M_{{{\mathit Z}^{\,'}}}$ = $\mathit M_{{{\mathit W}^{\,'}}}$, the limit increases $\mathit M_{{{\mathit Z}^{\,'}}}$ $>$ 2400 GeV and $\mathit M_{{{\mathit Z}^{\,'}}}$ $>$ 2300 GeV for ${{\mathit g}_{{V}}}$ = 3 and ${{\mathit g}_{{V}}}$ = 1, respectively. See their Fig.6 for limits on $\sigma \cdot{}\mathit B$.
13  SIRUNYAN 2017AP search for resonances decaying into a SM-like Higgs scalar ${{\mathit h}}$ and a light pseudo scalar ${{\mathit A}}$. ${{\mathit A}}$ is assumed to decay invisibly. See their Fig.9 for limits on ${{\mathit \sigma}}\cdot{}{{\mathit B}}$.
14  SIRUNYAN 2017T search for a new resonance decaying to dijets in $pp$ collisions at $\sqrt {s }$ = 13 TeV in the mass range $100 - 300$ GeV. See their Fig.3 for limits in the mass-coupling plane.
15  SIRUNYAN 2017V search for a new resonance decaying to a top quark and a heavy vector-like top partner ${{\mathit T}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. See their table 5 for limits on the ${{\mathit Z}^{\,'}}$ production cross section for various values of $\mathit M_{{{\mathit Z}^{\,'}}}$ and $\mathit M_{T}$ in the range of $\mathit M_{{{\mathit Z}^{\,'}}}$ = $1500 - 2500$ GeV and $\mathit M_{T}$ = $700 - 1500$ GeV.
16  AABOUD 2016 search for a narrow resonance decaying into ${{\mathit b}}{{\overline{\mathit b}}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit quoted above is for a leptophobic ${{\mathit Z}^{\,'}}$ with SM-like couplings to quarks. See their Fig.6 for limits on $\sigma \cdot{}\mathit B$.
17  AAD 2016L search for ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit a}}{{\mathit \gamma}}$ , ${{\mathit a}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. See their Table 6 for limits on $\sigma \cdot{}\mathit B$.
18  AAD 2016S search for a new resonance decaying to dijets in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit quoted above is for a leptophobic ${{\mathit Z}^{\,'}}$ having coupling strength with quark ${{\mathit g}_{{q}}}$ = 0.3 and is taken from their Figure 3.
19  KHACHATRYAN 2016AP search for a resonance decaying to ${{\mathit h}}{{\mathit Z}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. Both ${{\mathit h}}$ and ${{\mathit Z}}$ are assumed to decay to fat jets. The quoted limit is for heavy-vector-triplet ${{\mathit Z}^{\,'}}$ with ${{\mathit g}_{{V}}}$ = 3.
20  KHACHATRYAN 2016E search for a leptophobic top-color ${{\mathit Z}^{\,'}}$ decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ using ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. The quoted limit assumes that ${\Gamma}_{{\mathit Z}^{\,'}}/{\mathit m}_{{{\mathit Z}^{\,'}}}$ = 0.012. Also ${\mathit m}_{{{\mathit Z}^{\,'}}}$ $<$ 2.9 TeV is excluded for wider topcolor ${{\mathit Z}^{\,'}}$ with ${\Gamma}_{{\mathit Z}^{\,'}}/{\mathit m}_{{{\mathit Z}^{\,'}}}$ = 0.1.
21  AAD 2015AO search for narrow resonance decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ using ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. See Fig. 11 for limit on $\sigma \mathit B$.
22  AAD 2015AT search for monotop production plus large missing $\mathit E_{T}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV and give constraints on a ${{\mathit Z}^{\,'}}$ model having ${{\mathit Z}^{\,'}}{{\mathit u}}{{\overline{\mathit t}}}$ coupling. ${{\mathit Z}^{\,'}}$ is assumed to decay invisibly. See their Fig. 6 for limits on $\sigma \cdot{}\mathit B$.
23  AAD 2015CD search for decays of Higgs bosons to 4 ${{\mathit \ell}}$ states via ${{\mathit Z}^{\,'}}$ bosons, ${{\mathit h}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}^{\,'}}$ $\rightarrow$ 4 ${{\mathit \ell}}$ or ${{\mathit h}}$ $\rightarrow$ ${{\mathit Z}^{\,'}}{{\mathit Z}^{\,'}}$ $\rightarrow$ 4 ${{\mathit \ell}}$ . See Fig. 5 for the limit on the signal strength of the ${{\mathit h}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}^{\,'}}$ $\rightarrow$ 4 ${{\mathit \ell}}$ process and Fig. 16 for the limit on ${{\mathit h}}$ $\rightarrow$ ${{\mathit Z}^{\,'}}{{\mathit Z}^{\,'}}$ $\rightarrow$ 4 ${{\mathit \ell}}$ .
24  KHACHATRYAN 2015F search for monotop production plus large missing $\mathit E_{T}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV and give constraints on a ${{\mathit Z}^{\,'}}$ model having ${{\mathit Z}^{\,'}}{{\mathit u}}{{\overline{\mathit t}}}$ coupling. ${{\mathit Z}^{\,'}}$ is assumed to decay invisibly. See Fig. 3 for limits on $\sigma \mathit B$.
25  KHACHATRYAN 2015O search for narrow ${{\mathit Z}^{\,'}}$ resonance decaying to ${{\mathit Z}}{{\mathit h}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. See their Fig. 6 for limit on $\sigma \mathit B$.
26  AAD 2014AT search for a narrow neutral vector boson decaying to ${{\mathit Z}}{{\mathit \gamma}}$ . See their Fig. 3b for the exclusion limit in ${\mathit m}_{{{\mathit Z}^{\,'}}}−\sigma \mathit B$ plane.
27  KHACHATRYAN 2014A search for new resonance in the ${{\mathit W}}{{\mathit W}}$ ( ${{\mathit \ell}}{{\mathit \nu}}{{\mathit q}}{{\overline{\mathit q}}}$ ) and the ${{\mathit Z}}{{\mathit Z}}$ ( ${{\mathit \ell}}{{\mathit \ell}}{{\mathit q}}{{\overline{\mathit q}}}$ ) channels using ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$=8 TeV. See their Fig.13 for the exclusion limit on the number of events in the mass-width plane.
28  MARTINEZ 2014 use various electroweak data to constrain the ${{\mathit Z}^{\,'}}$ boson in the 3-3-1 models.
29  AAD 2013AQ search for a leptophobic top-color ${{\mathit Z}^{\,'}}$ decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ . The quoted limit assumes that ${\Gamma}_{{\mathit Z}^{\,'}}/{\mathit m}_{{{\mathit Z}^{\,'}}}$ = 0.012.
30  CHATRCHYAN 2013BM search for top-color ${{\mathit Z}^{\,'}}$ decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ using ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$=8 TeV. The quoted limit is for ${\Gamma}_{{\mathit Z}^{\,'}}/{\mathit m}_{{{\mathit Z}^{\,'}}}$ = 0.012.
31  CHATRCHYAN 2013AP search for top-color leptophobic ${{\mathit Z}^{\,'}}$ decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ using ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$=7 TeV. The quoted limit is for ${\Gamma}_{{\mathit Z}^{\,'}}/{\mathit m}_{{{\mathit Z}^{\,'}}}$ = 0.012.
32  AAD 2012BV search for narrow resonance decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ using ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$=7 TeV. See their Fig. 7 for limit on $\sigma \cdot{}$B.
33  AAD 2012K search for narrow resonance decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ using ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$=7 TeV. See their Fig. 5 for limit on $\sigma \cdot{}$B.
34  AALTONEN 2012AR search for chromophilic ${{\mathit Z}^{\,'}}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV. See their Fig. 5 for limit on $\sigma \cdot{}$B.
35  AALTONEN 2012N search for ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit t}}{{\mathit Z}^{\,'}}$ , ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\overline{\mathit t}}}{{\mathit u}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions. See their Fig. 3 for the limit on $\sigma \cdot{}$B.
36  ABAZOV 2012R search for top-color ${{\mathit Z}^{\,'}}$ boson decaying exclusively to ${{\mathit t}}{{\overline{\mathit t}}}$ . The quoted limit is for ${\Gamma}_{{\mathit Z}^{\,'}}/{\mathit m}_{{{\mathit Z}^{\,'}}}$= 0.012.
37  CHATRCHYAN 2012AI search for ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit t}}{{\mathit t}}$ events and give constraints on a ${{\mathit Z}^{\,'}}$ model having ${{\mathit Z}^{\,'}}{{\overline{\mathit u}}}{{\mathit t}}$ coupling. See their Fig. 4 for the limit in mass-coupling plane.
38  Search for resonance decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ . See their Fig. 6 for limit on $\sigma \cdot{}$B.
39  Search for narrow resonance decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ . See their Fig. 4 for limit on $\sigma \cdot{}$B.
40  Search for narrow resonance decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ . See their Fig. 3 for limit on $\sigma \cdot{}$B.
41  CHATRCHYAN 2011O search for same-sign top production in ${{\mathit p}}{{\mathit p}}$ collisions induced by a hypothetical FCNC ${{\mathit Z}^{\,'}}$ at $\sqrt {s }$ = 7 TeV. See their Fig. 3 for limit in mass-coupling plane.
42  Search for narrow resonance decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ . See their Fig.$~$3 for limit on $\sigma \cdot{}$B.
43  Search for narrow resonance decaying to ${{\mathit t}}{{\overline{\mathit t}}}$ . See their Fig.$~$2 for limit on $\sigma \cdot{}$B.
44  BARGER 2003B use the nucleosynthesis bound on the effective number of light neutrino $\delta \mathit N_{{{\mathit \nu}}}$. See their Figs.$~4 - 5$ for limits in general $\mathit E_{6}$ motivated models.
45  CHO 2000 use various electroweak data to constrain ${{\mathit Z}^{\,'}}$ models assuming ${\mathit m}_{{{\mathit H}}}$=100 GeV. See Fig.$~$2 for limits in general $\mathit E_{6}$-motivated models.
46  CHO 1998 study constraints on four-Fermi contact interactions obtained from low-energy electroweak experiments, assuming no ${{\mathit Z}}-{{\mathit Z}^{\,'}}$ mixing.
47  Search for ${{\mathit Z}^{\,'}}$ decaying to dijets at $\sqrt {\mathit s }=1.8$ TeV. For ${{\mathit Z}^{\,'}}$ with electromagnetic strength coupling, no bound is obtained.
References:
 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 2018B
EPJ C78 24 Search for Heavy Resonances Decaying into ${{\mathit W}}{{\mathit W}}$ in the ${{\mathit e}}{{\mathit \nu}}{{\mathit \mu}}{{\mathit \nu}}$ Final State in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 SIRUNYAN 2018G
JHEP 1801 097 Search for Low Mass Vector Resonances Decaying into Quark-Antiquark Pairs in Proton-Proton Collisions at $\sqrt {s }$ = 13 TeV
 AABOUD 2017AO
PL B774 494 Search for Heavy Resonances Decaying to a ${{\mathit W}}$ or ${{\mathit Z}}$ Boson and a Higgs Boson in the ${\mathit {\mathit q}}{\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ Final State in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 AABOUD 2017AK
PR D96 052004 Search for New Phenomena in Dijet Events using 37 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ Collision Data Collected at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 AABOUD 2017B
PL B765 32 Search for New Resonances Decaying to a ${{\mathit W}}$ or ${{\mathit Z}}$ Boson and a Higgs Boson in the ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$, ${{\mathit \ell}}{{\mathit \nu}}{\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$, and ${{\mathit \nu}}{{\overline{\mathit \nu}}}{\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ Channels with ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 KHACHATRYAN 2017AX
PL B773 563 Search for Leptophobic ${{\mathit Z}^{\,'}}$ Bosons Decaying into Four-Lepton Final States in Proton–Proton Collisions at $\sqrt {s }$ = 8 TeV
 KHACHATRYAN 2017U
PL B768 137 Search for Heavy Resonances Decaying into a Vector Boson and a Higgs Boson in Final States with Charged Leptons, Neutrinos, and ${\mathit {\mathit b}}$ Quarks
 SIRUNYAN 2017T
PRL 119 111802 Search for Low Mass Vector Resonances Decaying to Quark-Antiquark Pairs in Proton-Proton Collisions at $\sqrt {s }$ = 13 TeV
 SIRUNYAN 2017AK
PL B774 533 Combination of Searches for Heavy Resonances Decaying to ${{\mathit W}}{{\mathit W}}$, ${{\mathit W}}{{\mathit Z}}$, ${{\mathit Z}}{{\mathit Z}}$, ${{\mathit W}}{{\mathit H}}$, and ${{\mathit Z}}{{\mathit H}}$ Boson Pairs in Proton-Proton Collisions at $\sqrt {s }$ = 8 and 13 TeV
 SIRUNYAN 2017R
EPJ C77 636 Search for Heavy Resonances that Decay into a Vector Boson and a Higgs Boson in Hadronic Final States at $\sqrt {s }$ = 13 TeV
 SIRUNYAN 2017Q
JHEP 1707 001 Search for ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Resonances in Highly Boosted Lepton+Jets and Fully Hadronic Final States in Proton-Proton Collisions at $\sqrt {s }$ = 13 TeV
 SIRUNYAN 2017V
JHEP 1709 053 Search for a Heavy Resonance Decaying to a Top Quark and a Vector-Like Top Quark at $\sqrt {s }$ = 13 TeV
 SIRUNYAN 2017A
JHEP 1703 162 Search for Massive Resonances Decaying into ${{\mathit W}}{{\mathit W}}$, ${{\mathit W}}{{\mathit Z}}$ or ${{\mathit Z}}{{\mathit Z}}$ Bosons in Proton-Proton Collisions at $\sqrt {s }$ = 13 TeV
 SIRUNYAN 2017AP
JHEP 1710 180 Search for Associated Production of Dark Matter with a Higgs Boson Decaying to ${\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ or ${{\mathit \gamma}}{{\mathit \gamma}}$ at $\sqrt {s }$ = 13 TeV
 AABOUD 2016
PL B759 229 Search for Resonances in the Mass Distribution of Jet Pairs with One or Two Jets Identified as ${\mathit {\mathit b}}$-Jets in Proton-proton Collisions 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
PL B754 302 Search for New Phenomena in Dijet Mass and Angular Distributions from ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 KHACHATRYAN 2016E
PR D93 012001 Search for Resonant ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV
 KHACHATRYAN 2016AP
JHEP 1602 145 Search for a Massive Resonance Decaying into a Higgs Boson and a ${{\mathit W}}$ or ${{\mathit Z}}$ Boson in Hadronic Final States in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV
PR D92 092001 Search for New Light Gauge Bosons in Higgs Boson Decays to Four-Lepton Final States in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector at the LHC
EPJ C75 79 Search for Invisible Particles Produced in Association with Single-Top-Quarks in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
JHEP 1508 148 A Search for ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Resonances using Lepton-plus-Jets Events in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
 KHACHATRYAN 2015F
PRL 114 101801 Search for Monotop Signatures in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV
 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
PL B738 428 Search for New Resonances in ${{\mathit W}}{{\mathit \gamma}}$ and ${{\mathit Z}}{{\mathit \gamma}}$ Final States in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
 KHACHATRYAN 2014A
JHEP 1408 174 Search for Massive Resonances Decaying into Pairs of Boosted Bosons in Semi-Leptonic Final States at $\sqrt {s }$ = 8 TeV
 MARTINEZ 2014
PR D90 015028 Constraints on 3-3-1 Models with Electroweak ${{\mathit Z}}$ Pole Observables and ${{\mathit Z}^{\,'}}$ Search at the LHC
JHEP 1301 116 Search for Resonances Decaying into Top-Quark Pairs using Fully Hadronic Decays in ${{\mathit p}}{{\mathit p}}$ Collisions with ATLAS at $\sqrt {s }$ = 7 TeV
PR D88 012004 A Search for ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Resonances in the Lepton Plus Jets Final State with ATLAS using 4.7 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV
 AALTONEN 2013A
PRL 110 121802 Search for Resonant Top-Antitop Production in the Lepton Plus Jets Decay Mode Using the Full CDF Data Set
 CHATRCHYAN 2013AP
PR D87 072002 Search for ${{\mathit Z}^{\,'}}$ Resonances Decaying to ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ in dilepton+jets Final States in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV
 CHATRCHYAN 2013BM
PRL 111 211804 Searches for New Physics using the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Invariant Mass Distribution in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV
EPJ C72 2083 A Search for ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Resonances with the ATLAS Detector in 2.05 ${\mathrm {fb}}{}^{-1}$ of proton-proton Collisions at $\sqrt {s }$ = 7 TeV
JHEP 1209 041 A Search for ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Resonances in Lepton+Jets Events with Highly Boosted Top Quarks Collected in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV with the ATLAS Detector
 AALTONEN 2012N
PRL 108 211805 Search for a Heavy Particle Decaying to a Top Quark and a Light Quark in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
 AALTONEN 2012AR
PR D86 112002 Search for a Heavy Vector Boson Decaying to Two Gluons in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
 ABAZOV 2012R
PR D85 051101 Search for a Narrow ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Resonance in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
 CHATRCHYAN 2012AI
JHEP 1208 110 Search for New Physics in events with Same-Sign Dileptons and ${\mathit {\mathit b}}$-Tagged Jets in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV
 CHATRCHYAN 2012AQ
JHEP 1209 029 Search for Anomalous ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production in the Highly-Boosted All-Hadronic Final State
 CHATRCHYAN 2012BL
JHEP 1212 015 Search for Resonant ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production in Lepton+Jets Events in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV
PR D84 072003 Search for Resonant Production of ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Decaying to Jets in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
 AALTONEN 2011AE
PR D84 072004 Search for Resonant Production of ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ pairs in 4.8 fb${}^{-1}$ of Integrated Luminosity of ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
 CHATRCHYAN 2011O
JHEP 1108 005 Search for Same-Sign Top-Quark Pair Production at $\sqrt {s }$ = 7 TeV and Limits on Flavour Changing Neutral Currents in the Top Sector
 AALTONEN 2008D
PR D77 051102 Limits on the Production of Narrow ${{\mathit t}}{{\overline{\mathit t}}}$ Resonances in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
 AALTONEN 2008Y
PRL 100 231801 Search for Resonant ${{\mathit t}}{{\overline{\mathit t}}}$ Production in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
 ABAZOV 2008AA
PL B668 98 Search for ${{\mathit t}}{{\overline{\mathit t}}}$ Resonances in the Lepton Plus Jets Final State in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
 ABAZOV 2004A
PRL 92 221801 Search for Narrow ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Resonances in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at = 1.8 TeV
 BARGER 2003B
PR D67 075009 Primordial Nucleosynthesis Constraints on ${{\mathit Z}^{\,'}}$ Properties
 CHO 2000
MPL A15 311 Looking for ${{\mathit Z}^{\,'}}$ Bosons in Supersymmetric E(6) Models Through Electroweak Precision Data
 CHO 1998
EPJ C5 155 Constraints on Four Fermi Contact Interactions from Low-Energy Electroweak Experiments
 ABE 1997G
PR D55 5263 Search for New Particles Decaying to Dijets at CDF
 AABOUD 2016AG
EPJ C76 670 Measurement of the ${\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ Dijet Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV with the ATLAS Detector