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| 題名: | Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at √s = 7 TeV |
| 作者: | 張元翰;Chatrchyan, S.;Waltenberger, W.;Blyweert, S.;Van Onsem, G.P.;Guo, S.;Li, W.;Qian, S.J.;Mahmoud, M.A.;Kadastik, M.;Tuominiemi, J.;Cardaci, M.;Chasserat, J.;Perieanu, A.;Schettler, H.;De Boer, W.;Katkov, I.;Nürnberg, A.;Quast, G.;Scheurer, A.;Evangelou, I.;Kokkas, P.;Trocsanyi, Z.L.;Saini, L.K.;Banerjee, S.;Shukla, P.;Gurtu, A.;Mazumdar, K.;Fahim, A.;De Filippis, N.;Colafranceschi, S.;Fabbricatore, P.;Manzoni, R.A.;Carrillo Montoya, C.A.;Tosi, M.;Kraan, A.;Micheli, F.;Maselli, S.;Monaco, V.;Musich, M.;Kang, S.;Park, I.C.;Choi, Y.;Sánchez-Hernández, A.;Vazquez Valencia, F.;Doesburg, R.;Bunkowski, K.;Górski, M.;Zalewski, P.;Vischia, P.;Kozlov, G.;Zarubin, A.;Evstyukhin, S.;Dudko, L.;Hernandez, J.M.;Gill, K.;Pierini, M.;Bertl, W.;Ingram, Q.;Sanchez, A.K.;Chang, Y.H.;Lu, Y.J.;Gamsizkan, H.;Bostock, F.;Kreczko, L.;Cripps, N.;Nikitenko, A.;Pioppi, M.;Breto, G.;Houtz, R.;Everaerts, P.;Duarte, J.;Agostino, L.;Albrow, M.;Fisk, I.;Hooberman, B.;Lykken, J.;Konigsberg, J.;Gaultney, V.;Cavanaugh, R.;Lacroix, F.;Duru, F.;Lange, D.;Haupt, J.;Cremaldi, L.M.;Eads, M.;Pollack, B.;Durkin, L.S.;Puigh, D.;Gerbaudo, D.;Everett, A.;Vidal Marono, M.;Bodek, A.;Chou, J.P.;Libeiro, T.;Greene, S.;Gurrola, A.;Goodell, J.;Anderson, M.;Lazaridis, C.;Loveless, R. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | CMS;Dilepton;Exact sciences and technology;Fourth generation;Nuclear physics;Physics;The physics of elementary particles and fields;Top-like;Tprime |
| 日期: | 2012-09-17 |
| 上傳時間: | 2026-04-23 13:17:03 (UTC+8) |
| 出版者: | Kidlington: Elsevier B.V |
| 摘要: | 摘要： The results of a search for pair production of a heavy, top-like quark, t′, in the decay mode t′t¯′→bW+b¯W−→bℓ+νb¯ℓ−ν¯ are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0 fb−1 in pp collisions at a center-of-mass energy of 7 TeV, collected by the CMS experiment at the LHC. The observed number of events agrees with the expectation from standard model processes, and no evidence of t′t¯′ production is found. Upper limits on the production cross section as a function of t′ mass are presented, and t′ masses below 557 GeV/c2 are excluded at the 95% confidence level.
出版者： Kidlington: Elsevier B.V
出版日期： 2012-09-17
出處： Physics letters. B, 2012-09, Vol.716 (1), p.103-121
資源來源： Elsevier ScienceDirect Journals Complete
版權： 2012 CERN
版權： 2015 INIST-CNRS
識別號： ISSN: 0370-2693
識別號： EISSN: 1873-2445
識別號： DOI: 10.1016/j.physletb.2012.07.059
識別號： CODEN: PYLBAJ |
| 顯示於類別: | [物理學系] 期刊論文
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