Measurement of the W +W - cross section in pp collisions at √s= 8 TeVand limits on anomalous gauge couplings

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105382

Title:	Measurement of the W +W - cross section in pp collisions at √s= 8 TeVand limits on anomalous gauge couplings
Authors:	余欣珊;Asilar, E.;Tavernier, S.;Seva, T.;Zenoni, F.;Crucy, S.;Poyraz, D.;Forthomme, L.;Da Costa, E. M.;Bernardes, C. A.;Gregores, E. M.;Dimitrov, A.;Zhang, H.;Florez, C.;Gomez, J. P.;Tuominiemi, J.;Gras, P.;Lisniak, S.;Strebler, T.;Skovpen, K.;Perries, S.;Ostapchuk, A.;Schael, S.;Heidemann, C.;Cherepanov, V.;Kress, T.;Dooling, S.;Garay Garcia, J.;Hempel, M.;Schoerner-Sadenius, T.;Görner, M.;De Boer, W.;Giffels, M.;Roscher, F.;Ujvari, B.;Jha, V.;Sarkar, T.;My, S.;Paoletti, S.;Pegoraro, M.;Santocchia, A.;Bagliesi, G.;Dell’Orso, R.;Tonelli, G.;Belforte, S.;Roh, Y.;Hernandez-Almada, A.;Lokhtin, I.;Myagkov, I.;Bitioukov, S.;Ryutin, R.;Uzunian, A.;Missiroli, M.;Castiñeiras De Saa, J. R.;Gomez, G.;Barney, D.;Dabrowski, A.;De Gruttola, M.;Simon, M.;Casal, B.;Donegà, M.;Nessi-Tedaldi, F.;Suwonjandee, N.;Kangal, E. E.;Clement, E.;Heath, G. P.;Richardson, C.;Lander, R.;Cousins, R.;Ignatenko, M.;Yagil, A.;Zevi Della Porta, G.;Gouskos, L.;Mullin, S. D.;Suarez, I.;Nicolas Kaufman, G.;Freeman, J.;Jung, A. W.;Rakness, G.;Yumiceva, F.;Apanasevich, L.;Varelas, N.;Ogul, H.;Noonan, D.;Claes, D. R.;Kamalieddin, R.;Dolen, J.;Wolf, M.;Driga, O.;Gutay, L.;Jones, M.;Sun, J.;Chou, J. P.;Contreras-Campana, C.;Roe, J.;Dudero, P. R.;Velkovska, J.;Francis, B.;Wolfe, E.;Belknap, D. A.;Levine, A.
Contributors:	理學院物理學系
Keywords:	Astronomy;Astrophysics and Cosmology;Elementary Particles;Hadrons;Heavy Ions;Measurement Science and Instrumentation;Nuclear Energy;Nuclear Physics;Physics;Physics and Astronomy;Quantum Field Theories;Quantum Field Theory;Regular Article - Experimental Physics;String Theory
Date:	2016-07-01
Issue Date:	2026-04-23 12:21:44 (UTC+8)
Publisher:	Springer New York;Berlin/Heidelberg: Springer Berlin Heidelberg
Abstract:	摘要： A measurement of the W boson pair production cross section in proton-proton collisions at s = 8 TeV is presented. The data collected with the CMS detector at the LHC correspond to an integrated luminosity of 19.4 fb -1 . The W + W - candidates are selected from events with two charged leptons, electrons or muons, and large missing transverse energy. The measured W + W - cross section is 60.1 ± 0.9 (stat) ± 3.2 (exp) ± 3.1 (theo) ± 1.6 (lumi) \,pb = 60.1 ± 4.8 \,pb , consistent with the standard model prediction. The W + W - cross sections are also measured in two different fiducial phase space regions. The normalized differential cross section is measured as a function of kinematic variables of the final-state charged leptons and compared with several perturbative QCD predictions. Limits on anomalous gauge couplings associated with dimension-six operators are also given in the framework of an effective field theory. The corresponding 95 % confidence level intervals are - 5.7 < c WWW / Λ 2 < 5.9 TeV - 2 , - 11.4 < c W / Λ 2 < 5.4 TeV - 2 , - 29.2 < c B / Λ 2 < 23.9 TeV - 2 , in the HISZ basis. 其他題名： Eur. Phys. J. C 出版者： Berlin/Heidelberg: Springer Berlin Heidelberg 出版日期： 2016-07 出處： The European physical journal. C, Particles and fields, 2016-07, Vol.76 (7) 資源來源： EBSCOhost Academic Search Premier 版權： CERN for the benefit of the CMS collaboration 2016 識別號： ISSN: 1434-6044 識別號： EISSN: 1434-6052 識別號： DOI: 10.1140/epjc/s10052-016-4219-1
Appears in Collections:	[Department of Physics] journal & Dissertation

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