Search for heavy neutrinos and W bosons with right-handed couplings in a left-right symmetric model in pp collisions at 7 TeV

Abstract : Results are presented from a search for heavy, right-handed muon neutrinos, M[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 inverse femtobarn 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[R] mass, dependent on the value of M(W[R]). The excluded region in the two-dimensional (M(W[R]), M(N[mu])) mass plane extends to M(W[R]) = 2.5 TeV.
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Journal articles
Physical Review Letters, American Physical Society, 2012, 109, pp.261802. <10.1103/PhysRevLett.109.261802>


http://hal.in2p3.fr/in2p3-00740355
Contributor : Sylvie Florès <>
Submitted on : Wednesday, October 10, 2012 - 7:00:30 AM
Last modification on : Friday, March 15, 2013 - 9:00:50 AM

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S. Chatrchyan, M. Besançon, S. Choudhury, M. Dejardin, D. Denegri, et al.. Search for heavy neutrinos and W bosons with right-handed couplings in a left-right symmetric model in pp collisions at 7 TeV. Physical Review Letters, American Physical Society, 2012, 109, pp.261802. <10.1103/PhysRevLett.109.261802>. <in2p3-00740355>

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