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Title: Signals of a 2 TeV $W'$ boson and a heavier $Z'$ boson

Abstract

We construct an SU(2)L x SU(2)R x U(1)B-L model with a Higgs sector that consists of a bidoublet and a doublet, and with a right-handed neutrino sector that includes one Dirac fermion and one Majorana fermion. This model explains the CMS and ATLAS excess events in the e+e-jj, jj, Wh0 and WZ channels in terms of a W' boson of mass near 1.9 TeV and of coupling gR in the 0.4-0.5 range (with the lower half preferred by the limits on tb-bar resonances). We found that the production cross section of this W' boson at the 13 TeV LHC is in the 720-1100 fb range, allowing sensitivity in more than 17 final states. Furthermore, we determine that the Z' boson has a mass in the 2.9-4.5 TeV range and several decay channels that can be probed in Run 2 of the LHC, including cascade decays via heavy Higgs bosons. Interpreting the CMS e+e-event at 2.9 TeV as coming from the Z', the mass ratio of the Z' and W' bosons requires gR ≈0.48, which implies a pp →Z' → ℓ+-cross section of 2 fb at √s = 13 TeV.

Authors:
 [1];  [1]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1230034
Report Number(s):
FERMILAB-PUB-15-430-T
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1511.02148; TRN: US1601629
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 47; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Dobrescu, Bogdan A., and Fox, Patrick J. Signals of a 2 TeV $W'$ boson and a heavier $Z'$ boson. United States: N. p., 2016. Web. doi:10.1007/JHEP05(2016)047.
Dobrescu, Bogdan A., & Fox, Patrick J. Signals of a 2 TeV $W'$ boson and a heavier $Z'$ boson. United States. doi:10.1007/JHEP05(2016)047.
Dobrescu, Bogdan A., and Fox, Patrick J. Mon . "Signals of a 2 TeV $W'$ boson and a heavier $Z'$ boson". United States. doi:10.1007/JHEP05(2016)047. https://www.osti.gov/servlets/purl/1230034.
@article{osti_1230034,
title = {Signals of a 2 TeV $W'$ boson and a heavier $Z'$ boson},
author = {Dobrescu, Bogdan A. and Fox, Patrick J.},
abstractNote = {We construct an SU(2)L x SU(2)R x U(1)B-L model with a Higgs sector that consists of a bidoublet and a doublet, and with a right-handed neutrino sector that includes one Dirac fermion and one Majorana fermion. This model explains the CMS and ATLAS excess events in the e+e-jj, jj, Wh0 and WZ channels in terms of a W' boson of mass near 1.9 TeV and of coupling gR in the 0.4-0.5 range (with the lower half preferred by the limits on tb-bar resonances). We found that the production cross section of this W' boson at the 13 TeV LHC is in the 720-1100 fb range, allowing sensitivity in more than 17 final states. Furthermore, we determine that the Z' boson has a mass in the 2.9-4.5 TeV range and several decay channels that can be probed in Run 2 of the LHC, including cascade decays via heavy Higgs bosons. Interpreting the CMS e+e-event at 2.9 TeV as coming from the Z', the mass ratio of the Z' and W' bosons requires gR ≈0.48, which implies a pp →Z' → ℓ+ℓ-cross section of 2 fb at √s = 13 TeV.},
doi = {10.1007/JHEP05(2016)047},
journal = {Journal of High Energy Physics (Online)},
number = 47,
volume = 2016,
place = {United States},
year = {2016},
month = {5}
}

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