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| 題名: | Measurement of the production cross section for a W boson and two b jets in pp collisions at √√s=7 TeV |
| 作者: | 林宗泰;Chatrchyan, S.;Waltenberger, W.;Wulz, C.-E.;De Wolf, E.A.;Mccartin, J.;Yazgan, E.;Da Costa, E.M.;Finger, M.;Couderc, F.;Faure, J.L.;Givernaud, A.;Haguenauer, M.;Chasserat, J.;Erdogan, Y.;Lipka, K.;Salfeld-Nebgen, J.;Erfle, J.;Heine, K.;Berger, J.;Röcker, S.;Panagiotou, A.;Flouris, G.;Ujvari, B.;Kumar, Arun;Jain, Sh;Pant, L.M.;Ganguly, S.;Abbrescia, M.;Barbone, L.;Radogna, R.;Selvaggi, G.;Potenza, R.;Tosi, S.;Ghezzi, A.;Govoni, P.;Menasce, D.;Saha, A.;Fiori, F.;Grippo, M.T.;Rahatlou, S.;Rovelli, C.;Maselli, S.;Monaco, V.;Musich, M.;Candelise, V.;Kim, J.Y.;Lee, J.;Shoaib, M.;Varela, J.;Shulha, S.;Vlasov, E.;Leonidov, A.;Ekmedzic, M.;de Trocóniz, J.F.;Fernandez, M.;Marco, R.;Girone, M.;Krajczar, K.;Lee, Y.-J.;Pimiä, M.;Rovere, M.;Donegà, M.;Sala, L.;Lu, Y.J.;Chang, Y.H.;Shi, X.;Adiguzel, A.;Ferguson, W.;Nikitenko, A.;Reid, I.D.;Kasmi, A.;Pilot, J.;Schlein, P.;Lacroix, F.;Pieri, M.;Sudano, E.;Justus, C.;Pavlunin, V.;West, C.;Duarte, J.;Wilkinson, R.;Weng, Y.;Winstrom, L.;Chen, J.;Hagopian, V.;Weinberg, M.;Dilsiz, K.;Bauer, G.;Bose, S.;Meier, F.;Jain, S.;Won, S.;Kotov, K.;Ramirez Vargas, J.E.;Mesropian, C.;Somalwar, S.;Dragoiu, C.;Johns, W.;Boutle, S.;Mohapatra, A. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | CMS;Physics;PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;SMP |
| 日期: | 2014-07-30 |
| 上傳時間: | 2026-04-23 12:15:23 (UTC+8) |
| 出版者: | Netherlands: Elsevier B.V |
| 摘要: | 摘要： The production cross section for a W boson and two b jets is measured using proton–proton collisions at s=7 TeV in a data sample collected with the CMS experiment at the LHC corresponding to an integrated luminosity of 5.0 fb−1. The W+bb¯ events are selected in the W→μν decay mode by requiring a muon with transverse momentum pT>25 GeV and pseudorapidity |η|<2.1, and exactly two b-tagged jets with pT>25 GeV and |η|<2.4. The measured W+bb¯ production cross section in the fiducial region, calculated at the level of final-state particles, is σ(pp→W+bb¯)×B(W→μν)=0.53±0.05(stat.)±0.09(syst.)±0.06(theo.)±0.01(lum.) pb, in agreement with the standard model prediction. In addition, kinematic distributions of the W+bb¯ system are in agreement with the predictions of a simulation using MadGraph and pythia.
出版者： Netherlands: Elsevier B.V
出版日期： 2014-07-30
出處： Physics letters. B, 2014-07, Vol.735 (C), p.204-225
資源來源： Elsevier ScienceDirect Journals Complete
版權： 2014 The Authors
識別號： ISSN: 0370-2693
識別號： EISSN: 1873-2445
識別號： DOI: 10.1016/j.physletb.2014.06.041 |
| 顯示於類別: | [物理學系] 期刊論文
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