Search for heavy neutrinos and W bosons with right-handed couplings in proton–proton collisions at (Formula presented.)
European Physical Journal C, cilt.74, sa.11, 2014 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 74 Sayı: 11
- Basım Tarihi: 2014
- Doi Numarası: 10.1140/epjc/s10052-014-3149-z
- Dergi Adı: European Physical Journal C
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Erzincan Binali Yıldırım Üniversitesi Adresli: Evet
Özet
© 2014, CERN for the benefit of the CMS collaboration.A search for heavy, right-handed neutrinos, (Formula presented.), 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 8TeV corresponding to an integrated luminosity of 19.7 fb-1. For models with strict left-right symmetry, and assuming only one (Formula presented.) flavor contributes significantly to the WR decay width, the region in the two-dimensional (Formula presented.) mass plane excluded at a 95 % confidence level extends to approximately MWR = 30. TeV and covers a large range of neutrino masses below the WR boson mass, depending on the value of MWR. This search significantly extends the (Formula presented.) exclusion region beyond previous results.