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| 題名: | Evidence for associated production of a single top quark and W Boson in pp collisions at √s=7 TeV |
| 作者: | 余欣珊;Chatrchyan, S;Tumasyan, A;Mucibello, L;Dias, F A;Padula, Sandra S;Meng, X;Polic, D;Givernaud, A;Baffioni, S;Ferro, C;Tschudi, Y;Kluge, H;Mussgiller, A;Perrey, H;De Boer, W;Simonis, H J;Zeise, M;Patras, V;Beni, N;Sarkar, S;Dutta, D;Aziz, T;Parida, B;Wickramage, N;De Filippis, N;Braibant-Giacomelli, S;Perrotta, A;Menasce, D;Ragazzi, S;Cavallo, N;Gasparini, U;Simonetto, F;Saha, A;Serban, A T;Spagnolo, P;Cartiglia, N;Costa, M;Vilela Pereira, A;Belforte, S;Montanino, D;Goh, J;Grigelionis, I;Martínez-Ortega, J;Bialkowska, H;Szleper, M;Gorbunov, I;Savrin, V;Leonidov, A;Vinogradov, A;Bitioukov, S;Fernandez Bedoya, C;Bocci, A;De Roeck, A;Hinzmann, A;Lenzi, P;Perrozzi, L;Rovere, M;Sekmen, S;Buchmann, M A;Sala, L;Thea, A;Favaro, C;Bakirci, M N;Karapinar, G;Ozkorucuklu, S;Frazier, R;Metson, S;Harper, S;Rogerson, S;Speer, T;Rakness, G;Rebassoo, F;Rossin, R;Timciuc, V;Zhu, R Y;Drell, B R;Ulmer, K A;Patterson, J R;Gao, Y;Kilminster, B;Kunori, S;Marraffino, J M;Das, S;Silkworth, C;Wright, D;Cali, I A;Krajczar, K;Wenger, E A;Baumgartel, D;Jindal, P;Ramirez Vargas, J E;De Mattia, M;Zheng, Y;Garcia-Bellido, A;Damgov, J;Delannoy, A G;Kurt, P;Maguire, C;Francis, B;Friis, E |
| 貢獻者: | 理學院物理學系 |
| 日期: | 2013-01-11 |
| 上傳時間: | 2026-04-23 11:53:53 (UTC+8) |
| 摘要: | 摘要： Evidence is presented for the associated production of a single top quark and W boson in pp collisions at sqrt[s]=7 TeV with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 4.9 fb(-1). The measurement is performed using events with two leptons and a jet originated from a b quark. A multivariate analysis based on kinematic properties is utilized to separate the tt background from the signal. The observed signal has a significance of 4.0σ and corresponds to a cross section of 16(-4)(+5) pb, in agreement with the standard model expectation of 15.6±0.4(-1.2)(+1.0) pb.Evidence is presented for the associated production of a single top quark and W boson in pp collisions at sqrt[s]=7 TeV with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 4.9 fb(-1). The measurement is performed using events with two leptons and a jet originated from a b quark. A multivariate analysis based on kinematic properties is utilized to separate the tt background from the signal. The observed signal has a significance of 4.0σ and corresponds to a cross section of 16(-4)(+5) pb, in agreement with the standard model expectation of 15.6±0.4(-1.2)(+1.0) pb.
出版日期： 2013-01-11
出處： Phys. Rev. Lett, 2013-01, Vol.110 (2), p.022003
資源來源： American Physical Society Journals
識別號： ISSN: 1079-7114
識別號： EISSN: 1079-7114
識別號： DOI: 10.1103/PhysRevLett.110.022003 |
| 顯示於類別: | [物理學系] 期刊論文
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