Results are presented from a search for heavy, right-handed muon neutrinos, Nμ, and right-handed WRbosons, 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 WRmass, dependent on the value of MWR. The excluded region in the two-dimensional (MWR, MNμ) mass plane extends to MWR=2.5 TeV. © 2012 CERN. Published by the American Physical Society.
Search for heavy neutrinos and WRbosons with right-handed couplings in a left-right symmetric model in pp collisions at âs=7 TeV
Albergo, S.;Cappello, G.;Chiorboli, M.;Costa, S.;Potenza, R.;Tricomi, A.;Tuve, C.;
2012-01-01
Abstract
Results are presented from a search for heavy, right-handed muon neutrinos, Nμ, and right-handed WRbosons, 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 WRmass, dependent on the value of MWR. The excluded region in the two-dimensional (MWR, MNμ) mass plane extends to MWR=2.5 TeV. © 2012 CERN. Published by the American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
