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| 題名: | Measurement of the tt̄ production cross section in the τ+jets channel in pp collisions at √s = 7 TeV |
| 作者: | 余欣珊;Blekman, F.;Tytgat, M.;Favart, D.;Lagana, C.;Iaydjiev, P.;Dimitrov, A.;Avila, C.;Kinnunen, R.;Nayak, A.;Titov, M.;Haguenauer, M.;Drouhin, F.;Ostapchuk, A.;Raupach, F.;Sprenger, D.;Bontenackels, M.;Eckerlin, G.;Eckstein, D.;Kleinwort, C.;Ron, E.;Wissing, C.;Peiffer, T.;Schum, T.;Dierlamm, A.;Anagnostou, G.;Markou, A.;Sikler, F.;Szillasi, Z.;Dhingra, N.;Khakzad, M.;Safarzadeh, B.;Creanza, D.;De Palma, M.;Maggi, M.;Benvenuti, A. C.;Tosi, S.;Di Matteo, L.;Menasce, D.;Checchia, P.;Margoni, M.;D’Agnolo, R. T.;Diemoz, M.;Fanelli, C.;Argiro, S.;Kong, D. J.;Son, T.;Reyes-Santos, M. A.;Gavrilenko, M.;Sarycheva, L.;Ryutin, R.;Uzunian, A.;Flix, J.;Cabrillo, I. J.;Barney, D.;Magini, N.;Mulders, M.;Palencia Cortezon, E.;Chanon, N.;Urscheler, C.;Lei, Y. J.;Serin, M.;Sonmez, N.;Goldstein, J.;Metson, S.;Poll, A.;Petyt, D.;Radburn-Smith, B. C.;Shepherd-Themistocleous, C. H.;Hays, J.;Charaf, O.;John, J. St;Pellett, D.;Valuev, V.;Würthwein, F.;Xie, S.;Azzolini, V.;Smith, J. G.;Wittich, P.;Abdullin, S.;Lykken, J.;Furic, I. K.;Low, J. F.;Matchev, K.;Gleyzer, S. V.;Makouski, M.;Cali, I. A.;Chan, M.;Krajczar, K.;Berry, D.;Brinkerhoff, A.;Morse, D. M.;Lopes Pegna, D.;Brownson, E.;Covarelli, R.;Bhatti, A.;Hidas, D.;Somalwar, S.;Snook, B.;Ledovskoy, A.;Klabbers, P. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | Astronomy;Astrophysics and Cosmology;Elementary Particles;Hadrons;Heavy Ions;Letter;Measurement Science and Instrumentation;Nuclear Energy;Nuclear Physics;Physics;Physics and Astronomy;Quantum Field Theories;Quantum Field Theory;String Theory |
| 日期: | 2013-01-01 |
| 上傳時間: | 2026-04-23 12:21:00 (UTC+8) |
| 出版者: | Springer New York;Berlin/Heidelberg: Springer-Verlag |
| 摘要: | 摘要： The top-quark pair production cross section in 7 TeV center-of-mass energy proton–proton collisions is measured using data collected by the CMS detector at the LHC. The measurement uses events with one jet identified as a hadronically decaying τ lepton and at least four additional energetic jets, at least one of which is identified as coming from a b quark. The analyzed data sample corresponds to an integrated luminosity of 3.9 fb −1 recorded by a dedicated multijet plus hadronically decaying τ trigger. A neural network has been developed to separate the top-quark pairs from the W+jets and multijet backgrounds. The measured value of is consistent with the standard model predictions.
其他題名： Eur. Phys. J. C
出版者： Berlin/Heidelberg: Springer-Verlag
出版日期： 2013-04
出處： The European physical journal. C, Particles and fields, 2013-04, Vol.73 (4)
資源來源： Publicly Available Content Database
版權： CERN for the benefit of the CMS collaboration 2013
識別號： ISSN: 1434-6044
識別號： EISSN: 1434-6052
識別號： DOI: 10.1140/epjc/s10052-013-2386-x |
| 顯示於類別: | [物理學系] 期刊論文
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