Search for heavy neutrinos and W-R bosons with right-handed couplings in a left-right symmetric model in pp collisions at root s=7 TeV
Type :
Article
Publication Status :
published
Access :
restrictedAccess
Abstract
Results are presented from a search for heavy, right-handed muon neutrinos, N-mu, and right-handed W-R bosons, which arise in the left-right symmetric extensions of the standard model. The analysis is based on a 5: 0 fb(-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 WR mass, dependent on the value of M-WR. The excluded region in the two-dimensional (M-WR, MN mu) mass plane extends to M-WR = 2.5TeV.
Source :
Physical Review Letters
Date :
2012-12-27
Volume :
109
Issue :
26
Publisher :
American Physical Society
URI
http://hdl.handle.net/10679/631http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.109.261802
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