Search for heavy neutrinos and W bosons with right-handed couplings in proton–proton collisions at (Formula presented.)


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CMS Collaboration C., Khachatryan V., Sirunyan A., Tumasyan A., Adam W., Bergauer T., ...Daha Fazla

European Physical Journal C, cilt.74, sa.11, 2014 (SCI-Expanded) identifier identifier

  • 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
  • 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.