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Title: Search for heavy neutrinos and W bosons with right-handed couplings in proton–proton collisions at √s = 8 TeV

Abstract

A search for heavy, right-handed neutrinos, Nℓ (ℓ=e,μ), and right-handed WR bosons, which arise in the left-right symmetric extensions of the standard model, has been performed by the CMS experiment. The search was based on a sample of two lepton plus two jet events collected in proton–proton collisions at a center-of-mass energy of 8TeV corresponding to an integrated luminosity of 19.7 fb–1. For models with strict left-right symmetry, and assuming only one Nℓ flavor contributes significantly to the WR decay width, the region in the two-dimensional (MWR,MNℓ) mass plane excluded at a 95% confidence level extends to approximately MWR = 3.0TeV and covers a large range of neutrino masses below the WR boson mass, depending on the value of MWR. This search significantly extends the (MWR, MNℓ) exclusion region beyond previous results.

Authors:
 [1]
+ Show Author Affiliations
  1. Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
CMS Collaboration
OSTI Identifier:
1156534
Report Number(s):
FERMILAB-PUB-14-248-CMS; CERN-PH-EP-2014-161; CMS-EXO-13-008
Journal ID: ISSN 1434-6044; arXiv eprint number arXiv:1407.3683
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 74; Journal Issue: 11; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Khachatryan, Vardan. Search for heavy neutrinos and W bosons with right-handed couplings in proton–proton collisions at √s = 8 TeV. United States: N. p., 2014. Web. doi:10.1140/epjc/s10052-014-3149-z.
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Khachatryan, Vardan. Search for heavy neutrinos and W bosons with right-handed couplings in proton–proton collisions at √s = 8 TeV. United States. https://doi.org/10.1140/epjc/s10052-014-3149-z
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Khachatryan, Vardan. Wed . "Search for heavy neutrinos and W bosons with right-handed couplings in proton–proton collisions at √s = 8 TeV". United States. https://doi.org/10.1140/epjc/s10052-014-3149-z. https://www.osti.gov/servlets/purl/1156534.
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@article{osti_1156534,
title = {Search for heavy neutrinos and W bosons with right-handed couplings in proton–proton collisions at √s = 8 TeV},
author = {Khachatryan, Vardan},
abstractNote = {A search for heavy, right-handed neutrinos, Nℓ (ℓ=e,μ), and right-handed WR bosons, which arise in the left-right symmetric extensions of the standard model, has been performed by the CMS experiment. The search was based on a sample of two lepton plus two jet events collected in proton–proton collisions at a center-of-mass energy of 8TeV corresponding to an integrated luminosity of 19.7 fb–1. For models with strict left-right symmetry, and assuming only one Nℓ flavor contributes significantly to the WR decay width, the region in the two-dimensional (MWR,MNℓ) mass plane excluded at a 95% confidence level extends to approximately MWR = 3.0TeV and covers a large range of neutrino masses below the WR boson mass, depending on the value of MWR. This search significantly extends the (MWR, MNℓ) exclusion region beyond previous results.},
doi = {10.1140/epjc/s10052-014-3149-z},
journal = {European Physical Journal. C, Particles and Fields},
number = 11,
volume = 74,
place = {United States},
year = {Wed Nov 26 00:00:00 EST 2014},
month = {Wed Nov 26 00:00:00 EST 2014}
}
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https://doi.org/10.1140/epjc/s10052-014-3149-z
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