A search for heavy, right-handed neutrinos, N-l (l = e, mu), and right-handed W-R 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 fb(-1). 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-Nl) 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 W-R boson mass, depending on the value of M-WR. This search significantly extends the (M-WR, M-Nl) exclusion region beyond previous results.

CMS Collaboration, N., Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., et al. (2014). Search for heavy neutrinos and W bosons with right-handed couplings in proton–proton collisions at √s=8TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 74(11), 3149-1-3149-23 [10.1140/epjc/s10052-014-3149-z].

Search for heavy neutrinos and W bosons with right-handed couplings in proton–proton collisions at √s=8TeV

BONACORSI, DANIELE;BRAIBANT, SYLVIE;CAMPANINI, RENATO;CAPILUPPI, PAOLO;CASTRO, ANDREA;CODISPOTI, GIUSEPPE;CUFFIANI, MARCO;FANFANI, ALESSANDRA;FASANELLA, DANIELE;GUIDUCCI, LUIGI;MASETTI, GIANNI;NAVARRIA, FRANCESCO LUIGI;ROSSI, ANTONIO MARIA;ROVELLI, TIZIANO;SIROLI, GIAN PIERO;
2014

Abstract

A search for heavy, right-handed neutrinos, N-l (l = e, mu), and right-handed W-R 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 fb(-1). 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-Nl) 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 W-R boson mass, depending on the value of M-WR. This search significantly extends the (M-WR, M-Nl) exclusion region beyond previous results.
2014
CMS Collaboration, N., Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., et al. (2014). Search for heavy neutrinos and W bosons with right-handed couplings in proton–proton collisions at √s=8TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 74(11), 3149-1-3149-23 [10.1140/epjc/s10052-014-3149-z].
CMS Collaboration, Null; Khachatryan, V; Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwi...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/529525
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