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| 題名: | Search for a W' boson decaying to a bottom quark and a top quark in pp collisions at s=7TeV |
| 作者: | 張元翰;Chatrchyan, S.;Waltenberger, W.;Blyweert, S.;Van Onsem, G.P.;Clerbaux, B.;Gay, A.P.R.;Nuttens, C.;Schul, N.;Beliy, N.;Mundim, L.;Genchev, V.;Guo, S.;Li, W.;Qian, S.J.;Mahmoud, M.A.;Kadastik, M.;Tuominiemi, J.;Nayak, A.;Agram, J.-L.;Chasserat, J.;Perieanu, A.;Aldaya Martin, M.;Kasemann, M.;Schettler, H.;Hackstein, C.;Lobelle Pardo, P.;Oehler, A.;Hidas, P.;Horvath, D.;Trocsanyi, Z.L.;Banerjee, S.;Mazumdar, K.;Fahim, A.;Colafranceschi, S.;Fabbricatore, P.;Manzoni, R.A.;Carrillo Montoya, C.A.;Lacaprara, S.;Torre, P.;Taroni, S.;Micheli, F.;Kim, H.;Hoorani, H.R.;Dominik, W.;Smirnov, I.;Vavilov, S.;Gomez, G.;Rodrigo, T.;Harris, P.;Meschi, E.;Perez, E.;Horisberger, R.;Kaestli, H.C.;Sibille, J.;Thea, A.;Amsler, C.;Verzetti, M.;Li, S.W.;Bakirci, M.N.;Kangal, E.E.;Tali, B.;Aliev, T.;Frazier, R.;Goldstein, J.;Newbold, D.M.;Della Negra, M.;Nash, J.;Cousins, R.;Hanson, G.;Lowette, S.;Rossin, R.;Traczyk, P.;Mishra, K.;Tkaczyk, S.;Uplegger, L.;Vodopiyanov, I.;Bai, Y.;Khalil, S.;Boutemeur, M.;Butz, E.;Luckey, P.D.;Wenger, E.A.;Yang, M.;Eads, M.;Godshalk, A.;Jain, S.;Barberis, E.;Pollack, B.;Stoynev, S.;Brownson, E.;Ramirez Vargas, J.E.;Jones, M.;Vidal Marono, M.;Parashar, N.;de Barbaro, P.;Zielinski, M.;Safonov, A.;Lee, S.W.;Cepeda, M.;Mohapatra, A. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | CMS;formula omitted;Physics |
| 日期: | 2013-01-29 |
| 上傳時間: | 2026-04-23 12:53:12 (UTC+8) |
| 出版者: | Netherlands: Elsevier B.V |
| 摘要: | 摘要： Results are presented from a search for a W′ boson using a dataset corresponding to 5.0 fb−1 of integrated luminosity collected during 2011 by the CMS experiment at the LHC in pp collisions at s=7 TeV. The W′ boson is modeled as a heavy W boson, but different scenarios for the couplings to fermions are considered, involving both left-handed and right-handed chiral projections of the fermions, as well as an arbitrary mixture of the two. The search is performed in the decay channel W′→tb, leading to a final state signature with a single electron or muon, missing transverse energy, and jets, at least one of which is identified as a b-jet. A W′ boson that couples to the right-handed (left-handed) chiral projections of the fermions with the same coupling constants as the W is excluded for masses below 1.85 (1.51) TeV at the 95% confidence level. For the first time using LHC data, constraints on the W′ gauge couplings for a set of left- and right-handed coupling combinations have been placed. These results represent a significant improvement over previously published limits.
出版者： Netherlands: Elsevier B.V
出版日期： 2013-01-29
出處： Physics letters. B, 2013-01, Vol.718 (4-5), p.1229-1251
資源來源： Elsevier ScienceDirect Journals Complete
版權： 2012 CERN
識別號： ISSN: 0370-2693
識別號： EISSN: 1873-2445
識別號： DOI: 10.1016/j.physletb.2012.12.008 |
| 顯示於類別: | [物理學系] 期刊論文
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