Search for Heavy Neutrinos and WR Bosons with Right-Handed Couplings in a Left-Right Symmetric Model in pp Collisions at √s=7 TeV
Name
Chatrchyan-2012-Search for Heavy Neutrinos and W-R Bosons with Right-Handed.pdf
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465.53 KB
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Author(s)
Apyan, Aram
Bendavid, Joshua L.
Busza, Wit
Butz, Erik M.
Cali, Ivan Amos
Chan, M.
Dutta, Valentina
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Kim, Y.
Date Issued
December 2012
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Chatrchyan, S. et al. “Search for Heavy Neutrinos and W_{R} Bosons with Right-Handed Couplings in a Left-Right Symmetric Model in Pp Collisions at Sqrt[s]=7 TeV.” Physical Review Letters 109.26 (2012).
Version
Final published version
Abstract
Results are presented from a search for heavy, right-handed muon neutrinos, N[subscript μ], and right-handed WR bosons, which arise in the left-right symmetric extensions of the standard model. The analysis is based on a 5.0 fb[superscript -1] sample of proton-proton collisions at a center-of-mass energy of 7 TeV, collected by the CMS detector at the Large Hadron Collider. No evidence is observed for an excess of events over the standard model expectation. For models with exact left-right symmetry, heavy right-handed neutrinos are excluded at 95% confidence level for a range of neutrino masses below the W[subscript R] mass, dependent on the value of M[subscript W[subscript R]]. The excluded region in the two-dimensional (M[subscript W[subscript R]], M[subscript N[subscript μ]]) mass plane extends to M[subscript W[subscript R]]=2.5 TeV.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution Non-Commercial
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.109.261802
