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Introduction

This page summarizes models for Z' and W' as used in searches performed by ATLAS and CMS.

Bibliography

Review

• P. Langacker, The Physics of Heavy Z' Gauge Bosons, Rev. Mod. Phys. 81 (2009) 1199. [ref ATLAS; includes SSM, LFV, E_6 leptophobic,...]

SSM/EGM:

• G. Altarelli, B. Mele, and M. Ruiz-Altaba, Searching for new heavy vector bosons in ppbar colliders Z. Phys. C 45, 109 (1989); erratum-ibid C 47, 676 (1990).
• E. Eichten, I. Hinchliffe, K. D. Lane, and C. Quigg, “Supercollider physics”, Rev. Mod. Phys. 56 (1984) 579, erratum [ref CMS for dijet searches]

GUT/E_6 (superstring inspired):

• D. London and J. L. Rosner, Extra Gauge Bosons in E(6), Phys. Rev. D 34 (1986) 1530.
• Z. Sullivan, “Fully differential W' production and decay at next-to-leading order in QCD”, Phys. Rev. D 66 (2002) 075011, arXiv:hep-ph/0207290.
• D. Duffty and Z. Sullivan, Model independent reach for W' bosons at the LHC Phys. Rev. D 86 (2012) 075018, arXiv:1208.4858.
• C.-W. Chiang, T. Nomura and K. Yagyu, Phenomenology of E6-inspired leptonphobic Z' boson at the LHC, JHEP 05 (2014) 106, arXiv: 1402.5579.
• LR symmetric model (Z'_3R, covered by Minimal Model): G. Senjanovic and R. N. Mohapatra, Phys. Rev. D12 (1975) 1502; R. N. Mohapatra and J. C. Pati, Phys. Rev. D11 (1975) 566.
• pure (B-L) model (Z'_B-L, covered by Minimal Model): L. Basso, A. Belyaev, S. Moretti, and C. H. Shepherd-Themistocleous, Phys. Rev. D80 (2009) 055030, arXiv:0812.4313.

Effective model describing the couplings of the W' boson to fermions:

• Z. Sullivan Phys. Rev. D66 (2002) 075011, arXiv:hep-ph/0207290

Minimal Models:

• E. Salvioni, G. Villadoro, and F. Zwirner, JHEP 0911 (2009) 068, arXiv:0909.1320.

Non-universal gauge interaction models (NUGIM):

• C.-W. Chiang, N. G. Deshpande, X.-G. He, and J. Jiang, “Family SU(2)l x SU(2)h x U(1) model”, Phys. Rev. D 81 (2010) 015006
• X. Li and E. Ma, “Gauge Model of Generation Nonuniversality”, Phys. Rev. Lett. 47 (1981) 1788
• D. J. Muller and S. Nandi, “Top flavor: A separate SU(2) for the third family”, Phys. Lett. B 383 (1996) 345

Topcolor assisted Technicolour (ATLAS tag: Z'_TC2, CMS tag: TAT):

• C. T. Hill and S. J. Parke, Top production: Sensitivity to new physics, Phys. Rev. D 49 (1994) 4454, hep-ph/9312324. [ref ATLAS]
• C. T. Hill, Topcolor assisted technicolor, Phys. Lett. B 345 (1995) 483, hep-ph/9411426
• K. Lane, A new model of topcolor-assisted technicolor, Phys. Lett. B 433 (1998) 96 [ref CMS for Z'--> tau tau]
• R. M. Harris, C. T. Hill, and S. J. Parke, Cross-section for topcolor Z' decaying to tt: Version 2.6, hep-ph/9911288
• R. M. Harris and S. Jain, “Cross sections for leptophobic topcolor Z’ decaying to top-antitop”, Eur. Phys. J. C 72 (2012) 2072

Dark Matter Mediator / "Leptophobic Z' " (ATLAS)

• D. Abercrombie et al., Dark matter benchmark models for early LHC Run-2 searches: report of the ATLAS/CMS Dark Matter Forum, 2015, arXiv: 1507.00966 [ref ATLAS]
• M. Chala et al., Constraining Dark Sectors with Monojets and Dijets, JHEP 07 (2015) 089, arXiv: 1503.05916. [ref ATLAS]
• A. Boveia et al., “Recommendations on presenting LHC searches for missing transverse energy signals using simplified s-channel models of dark matter”, (2016). arXiv:1603.04156 [ref CMS]
• J. Abdallah et al., “Simplified models for dark matter searches at the LHC”, Phys. Dark Univ. 9-10 (2015) 8, arXiv:1506.03116. [ ref CMS]

[Z' resonance with axial-vector couplings to quarks (g_q, universal in quark flavour) and to a fermion dark matter candidate (m>>m(Z')). Mixing with SM Z assumed negligible]

See also DarkMatterInfo

Extra-dimensions (Z_KK, W_KK):

• I. Antoniadis, A Possible new dimension at a few TeV, Phys. Lett. B 246 (1990) 377.
• I. Antoniadis, K. Benakli and M. Quir´os, Direct collider signatures of large extra dimensions, Phys. Lett. B 460 (1999) 176, hep-ph/9905311.
• see also ExtraDimInfo

Extra-dimensions (LFV):

• J. M. Frere, M. V. Libanov, E. Y. Nugaev, and S. V. Troitsky, “Searching for family number conserving neutral gauge bosons from extra dimensions”, JETP Lett. 79 (2004) 598
• J. M. Frere, M. V. Libanov, E. Y. Nugaev, and S. V. Troitsky, “Fermions in the vortex background on a sphere”, JHEP 06 (2003) 009

Heavy Vector Triplet (HVT):

• D. Pappadopulo et al., Heavy Vector Triplets: Bridging Theory and Data, JHEP 1409 (2014) 060, arXiv: 1402.4431 [hep-ph]
• see also TechiCHVTInfo

Hidden Valley:

• Z' is a frequent mediator in Hidden Valley scenarios. The existing ATLAS publications are not listed here.

PDG reviews

• W' searches
• Z' searches

Analyses

Most recent results from ATLAS and CMS are listed in the table below. The last update was made on 31 May 2017.

LPX	Channel	Paper/Conf	Model	Event Generator	PDF Set	Comments
ATLAS	Z'--> ll	ATLAS-CONF-2017-027	SSM, E_6, Minimal Models	Pythia8	NNPDF23LO
ATLAS	Z'--> ll	EXOT-2012-23	SSM, E_6, Minimal Models	Pythia8	MSTW2008LO	8 TeV
ATLAS	Z'--> ll	EXOT-2012-01	SSM, E_6, Minimal Models, Z_KK	Pythia6	MRST2007LO**	7 TeV
CMS	Z'--> ll	EXO-16-031	SSM, E_6	Pythia8	?
CMS	Z'--> ll	EXO-15-005	SSM, E_6	Pythia8	CTEQ6.1	8+13 TeV
ATLAS	Z'--> tautau--> full had	EXOT-2014-05	SSM	Pythia8	CTEQ6L1	8 TeV
CMS	Z'--> tautau-->eu,eh, uh, hh	EXO-16-008	SSM, TAT	Pythia8	NNPDF30
ATLAS	Z'--> ll'	EXOT-2015-20	LFV	Pythia8	NNPDF23LO
CMS	Z'--> ll'	EXO-13-002	XD LFV	MadGraph	CTEQ6L1
CMS	Z'--> phi phi --> 4l	EXO-14-006	leptophobic	CalcHEP3.4.1 + Pythia6	CTEQ6L	8 TeV
ATLAS	W'--> lv	ATLAS-CONF-2017-016	SSM/EGM	Pythia8	NNPDF23LO
CMS	W'--> lv	EXO-15-006	SSM/EGM	Pythia8	NNPDF30
CMS	W'--> tauv	EXO-12-011	SSM/EGM, NUGIM	MadGraph + Pythia	CTEQ6L1	8 TeV
CMS	ll+E_Tmiss	EXO-16-038	spin-1 DM mediator	MadGraph5 + Pythia8	NNPDF32

HQT	Channel	Paper/Conf	Model	Event Generator	PDF Set	Comments
ATLAS	Z'-->tt--> semi-lep	ATLAS-CONF-2016-014	leptophobic topcolor	Pythia8	NNPDF23LO
CMS	Z'-->tt--> all had	CMS-PAS-B2G-15-003	SSM
CMS	Z'-->tt-->ll, semi-lep, had	B2G-13-008	leptophobic topcolor	MadGrah4	?	8 TeV
ATLAS	W'-->tb--> semi-lep	TOPQ-2012-19	W'_R, W'_L	MadGraph5 + Pythia8	CTEQ6L1	8 TeV
CMS	W'-->tb--> semi-lep	CMS-PAS-B2G-17-010	W'_R, W'_L
CMS	W'-->tb--> semi-lep	CMS-PAS-B2G-16-017	W'_R	CompHEP4.5.2rc10	CTEQ6l1
ATLAS	W'-->tb--> had	EXOT-2013-14	W'_R, W'_L	MadGraph5 + Pythia8	CTEQ6L1	8 TeV
CMS	W'-->tb-->had	CMS-PAS-B2G-16-009	W'_R	CompHEP4.5.2rc10	CTEQ6l1
CMS	W'-->tb-->lep	CMS-PAS-B2G-15-004	W'_R	CompHEP4.5.2rc10	CTEQ6l1
CMS	W'-->tb-->had	CMS-B2G-12-009	W'_R, W'_L, W'_LR	CompHEP4.4	?	8 TeV

JDM	Channel	Paper/Conf	Model	Event Generator	PDF Set	Comments
ATLAS	W',Z'-->jj	EXOT-2016-21	SSM/EGM, leptophobic	Pythia8, MadGraph5_aMC@NLO
ATLAS	Z',W'-->jj	ATLAS-CONF-2016-069	SSM, leptophobic	Pythia8	NNPDF23LO
CMS	Z'-->jj	EXO-16-030	leptophobic	MadGraph + Pythia8	?
ATLAS	Z'-->jj + j/gamma	ATLAS-CONF-2016-070	leptophobic	MadGraph5_aMC@NLO + Pythia8	NNPDF3.0 LO
ATLAS	Z'-->jj TLA	ATLAS-CONF-2016-030	leptophobic	MadGraph5_aMC@NLO + Pythia8	NNPDF3.0 LO
CMS	Z', W'-->jj	EXO-16-032	SSM, DM mediator	Pythia8	CTEQ6l1
ATLAS	Z'-->bb, bj	ATLAS-CONF-2016-060	SSM, E_6 leptophobic	Pythia8	NNPDF23LO
CMS	Z', W'-->bb	EXO-11-094	SSM	Pythia6	CTEQ6l1?	7 TeV

DBL	Channel	Paper/Conf	Model	Event Generator	PDF Set	Comments
CMS	W'-->WZ, WH--> lv bb	EXO-14-010	HVT Model B	MadGraph	CTEQ6L	8 TeV
ATLAS	V'-->WW/WZ-->lv qq	ATLAS-CONF-2016-062	HVT Model A and B	MadGraph-2.2.2 + Pythia8	NNPDF23LO	g_V = 1 (model A) and 3 (model B)
ATLAS	W'-->ZV-->ll qq, vv qq	ATLAS-CONF-2016-082	HVT Model A	MadGraph5	NNPDF23LO
CMS	V'-->HV--> all jets	EXO-14-009	HVT Model B	MadGraph5	?	8 TeV
CMS	V'-->WW, WZ, ZZ--> lv qq, qq qq	CMS-PAS-B2G-16-004	HVT Model A and B	MadGraph5_aMC@NLO	NNPDF 3.0	g_V = 1 (model A) and 3 (model B)
ATLAS	V'-->WW/WZ-->JJ	ATLAS-CONF-2016-055	HVT Model A and B	MadGraph5_aMC@NLO + Pythia8	NNPDF23LO	g_V = 1 (model A) and 3 (model B)
ATLAS	V'-->VH-->bb ll/lv/vv	EXOT-2015-18	HVT Model A and B	MadGraph5_aMC@NLO + Pythia8	NNPDF23LO	g_V = 1 (model A) and 3 (model B)
ATLAS	V'-->VH-->qq bb	ATLAS-CONF-2017-018	HVT Model A and B	MadGraph5_aMC@NLO + Pythia8	NNPDF23LO	g_V = 1 (model A) and 3 (model B)
CMS	V'-->VH--> qq bb	CMS-PAS-B2G-17-002	HVT Model B			g_V = 3
CMS	V'-->WV--> all had	CMS-PAS-B2G-17-001	HVT Model B			g_V = 3
ATLAS	W'-->WZ-->lv l'l', qq ll, lv qq	EXOT-2014-18	SSM/EGM	Pythia8	!CTEQ6L1	8 TeV combination

Any W'--> tB ot Tb?

Upgrade

Experiment	cms	Channel	Note	Model
ATLAS	14 TeV	Z'--> tt	ATL-PHYS-PUB-2017-002	leptophobic topcolor
ATLAS	14 TeV	Z'--> ll	ATL-PHYS-PUB-2013-003	SSM
CMS	14 TeV	Z'-->ll, W'-->ev	EXO-14-007	SSM

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Major updates:
-- FabienneLedroit - 2017-01-30

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