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

• Main Authors: Apyan, Aram (Contributor), Barbieri, R. (Contributor), Bauer, Gerry P. (Contributor), Busza, Wit (Contributor), Cali, Ivan Amos (Contributor), Chan, M. (Contributor), Di Matteo, Leonardo (Contributor), Dutta, V. (Contributor), Gomez-Ceballos, Guillelmo (Contributor), Goncharov, Maxim (Contributor), Gulhan, Doga Can (Contributor), Klute, Markus (Contributor), Lai, Yue Shi (Contributor), Lee, Y.-J (Contributor), Levin, A. (Contributor), Luckey, P. David, Jr (Contributor), Ma, Teng (Contributor), Paus, Christoph M. E. (Contributor), Ralph, Duncan Kelley (Contributor), Roland, Christof E. (Contributor), Roland, Gunther M. (Contributor), Stephans, George S. F. (Contributor), Stockli, Fabian (Contributor), Sumorok, Konstanty C. (Contributor), Velicanu, Dragos Alexandru (Contributor), Veverka, Jan (Contributor), Wyslouch, Boleslaw (Contributor), Yang, M. (Contributor), Yoon, A. S. (Contributor), Zanetti, Marco (Contributor), Zhukova, Victoria (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor), Massachusetts Institute of Technology. School of Science (Contributor)
• Format: Article
• Language: English
• Published: Springer-Verlag, 2015-02-18T19:17:35Z.
• Subjects: Article
• Online Access: Get fulltext

A search for heavy, right-handed neutrinos, Nℓ ( ℓ=e,μ ), and right-handed W[subscript 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[superscript −1]. For models with strict left-right symmetry, and assuming only one N[subscript ℓ] flavor contributes significantly to the W[subscript R] decay width, the region in the two-dimensional (M[subscript WR],M[subscript Nℓ]) mass plane excluded at a 95 % confidence level extends to approximately M[subscript WR]=3.0TeV and covers a large range of neutrino masses below the W[subscript R] boson mass, depending on the value of M[subscript WR]. This search significantly extends the (M[subscript WR],M[subscript Nℓ]) exclusion region beyond previous results.
United States. Dept. of Energy
National Science Foundation (U.S.)
Alfred P. Sloan Foundation