# Search for heavy neutrinos and W bosons with right-handed couplings in proton-proton collisions at sqrt(s) = 8 TeV

Abstract : A search for heavy, right-handed neutrinos, N[l] (l = e, mu), 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 8 TeV corresponding to an integrated luminosity of 19.7 inverse femtobarns. No significant excess of events over the standard model expectation is observed. For models with strict left-right symmetry, and assuming only one N[l] flavor contributes significantly to the WR decay width, the region in the two-dimensional (M[WR], M[N]) mass plane excluded at a 95% confidence level extends to approximately M[WR] = 3.0 TeV and covers a large range of neutrino masses below the WR boson mass, depending on the value of M[WR]. This search significantly extends the (M[WR], M[N]) exclusion region beyond previous results.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-01023625
Contributor : Sylvie Flores <>
Submitted on : Tuesday, July 15, 2014 - 7:46:00 AM
Last modification on : Wednesday, January 6, 2021 - 6:44:02 PM

### Citation

V. Khachatryan, S. Baffioni, F. Beaudette, P. Busson, C. Charlot, et al.. Search for heavy neutrinos and W bosons with right-handed couplings in proton-proton collisions at sqrt(s) = 8 TeV. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2014, 74, pp.3149. ⟨10.1140/epjc/s10052-014-3149-z⟩. ⟨in2p3-01023625⟩

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