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| 題名: | Search for leptonic decays of W′ bosons in pp collisions at √s = 7 TeV |
| 作者: | 林宗泰;Chatrchyan, S.;Cornelis, T.;Vanelderen, L.;Nuttens, C.;Carvalho, W.;Fonseca De Souza, S.;Genchev, V.;Asawatangtrakuldee, C.;Morovic, S.;Mousa, J.;Lassila-Perini, K.;Nayak, A.;Kreuzer, P.;Davids, M.;Kuessel, Y.;Nowack, A.;Eckerlin, G.;Dierlamm, A.;Hidas, P.;Horvath, D.;Kaur, M.;Dutta, S.;Mohanty, A. K.;Zeinali, M.;Iaselli, G.;Maggi, M.;Pompili, A.;Civinini, C.;Focardi, E.;Bianco, S.;Branca, A.;Lucaroni, A.;Diemoz, M.;Grassi, M.;Sigamani, M.;Arneodo, M.;Costa, M.;Graziano, A.;Musich, M.;Chang, S.;Doesburg, R.;Asghar, M. I.;Shoaib, M.;Vischia, P.;Golutvin, I.;Ivanov, Y.;Matveev, V.;Obraztsov, S.;Cerrada, M.;Chamizo Llatas, M.;Ferrando, A.;Duarte Campderros, J.;De Roeck, A.;Kaadze, K.;Moser, R.;Nguyen, M.;Palencia Cortezon, E.;Rolandi, G.;Chen, Z.;Eugster, J.;Nef, P.;Aguilo, E.;Grundler, U.;Dumanoglu, I.;Vergili, L. N.;Ozpineci, A.;Harper, S.;Cutajar, M.;Fulcher, J.;Futyan, D.;Hatherell, Z.;Raymond, D. M.;Lazic, D.;Segala, M.;Rutherford, B.;Tucker, J.;Ellison, J.;Stuart, D.;Veverka, J.;Uplegger, L.;Kim, B.;Korytov, A.;Newsom, C. R.;Lange, D.;Hahn, K. A.;Haupt, J.;Butt, J.;Eads, M.;Pollack, B.;Durkin, L. S.;Puigh, D.;Gerbaudo, D.;Benedetti, D.;Bortoletto, D.;Svyatkovskiy, A.;Eshaq, Y.;Suarez, I.;Akchurin, N.;Tuo, S.;Sakharov, A. |
| 貢獻者: | 理學院物理學系 |
| 日期: | 2012-08-27 |
| 上傳時間: | 2026-04-23 13:19:39 (UTC+8) |
| 摘要: | 摘要： A search for a new heavy gauge boson W ′ decaying to an electron or muon, plus a low mass neutrino, is presented. This study uses data corresponding to an integrated luminosity of 5.0 fb −1 , collected using the CMS detector in pp collisions at a centre-of-mass energy of 7 TeV at the LHC. Events containing a single electron or muon and missing transverse momentum are analyzed. No significant excess of events above the standard model expectation is found in the transverse mass distribution of the lepton-neutrino system, and upper limits for cross sections above different transverse mass thresholds are presented. Mass exclusion limits at 95% CL for a range of W ′ models are determined, including a limit of 2.5 TeV for right-handed W ′ bosons with standard-model-like couplings and limits of 2.43–2.63 TeV for left-handed W ′ bosons, taking into account their interference with the standard model W boson. Exclusion limits have also been set on Kaluza-Klein W KK states in the framework of split universal extra dimensions.
出版日期： 2012-08
出處： The journal of high energy physics, 2012-08, Vol.2012 (8), Article 23
資源來源： Publicly Available Content Database
識別號： ISSN: 1029-8479
識別號： ISSN: 1126-6708
識別號： ISSN: 1127-2236
識別號： EISSN: 1029-8479
識別號： DOI: 10.1007/JHEP08(2012)023 |
| 顯示於類別: | [物理學系] 期刊論文
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