Measurement of electroweak production of two jets in association with a Z boson in proton–proton collisions at √s=8TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105190

Title:	Measurement of electroweak production of two jets in association with a Z boson in proton–proton collisions at √s=8TeV
Authors:	林宗泰;Jeitler, M.;Kiesenhofer, W.;Taurok, A.;Waltenberger, W.;Van Spilbeeck, A.;Daci, N.;Reis, T.;Thomas, L.;Pin, A.;Carvalho, W.;Fernandez Perez Tomei, T. R.;Stoykova, S.;Peltola, T.;Depasse, P.;Fay, J.;Ruiz Alvarez, J. D.;Sgandurra, L.;Kieseler, J.;Lobanov, A.;Lohmann, W.;Vargas Trevino, A. D. R.;Görner, M.;Sola, V.;Dierlamm, A.;Kuznetsova, E.;Nürnberg, A.;Manthos, N.;Naimuddin, M.;Mohammadi Najafabadi, M.;Maggi, M.;Silvestris, L.;Abbiendi, G.;Campanini, R.;Chiorboli, M.;Gonzi, S.;Meschini, M.;Ragazzi, S.;Trioss, A.;Barone, L.;Arneodo, M.;Musich, M.;Son, D. C.;Song, S.;Górski, M.;Krolikowski, J.;Popov, V.;Vinogradov, A.;Krychkine, V.;Petrov, V.;Rekovic, V.;Calvo, E.;Chamizo Llatas, M.;Garcia-Abia, P.;Gonzalez Caballero, I.;Camporesi, T.;Dordevic, M.;Janot, P.;Masetti, L.;Piparo, D.;Zeuner, W. D.;Donegà, M.;Pauss, F.;Canelli, M. F.;Kreczko, L.;Williams, T.;Rogerson, S.;Kasmi, A.;Charaf, O.;Bose, T.;Farrell, C.;Rakness, G.;Gaz, A.;Alexander, J.;Sun, W.;Abdullin, S.;Gottschalk, E.;Gray, L.;Joshi, U.;Furic, I. K.;Markowitz, P.;Berry, D.;Baringer, P.;Skhirtladze, N.;Lu, Y.;Busza, W.;Gude, A.;Pastika, N.;Dolen, J.;Stoynev, S.;Kellams, N.;Wolf, M.;Piroué, P.;Petrillo, G.;Bouhali, O.;Cowden, C.;Faulkner, J.;Johns, W.;Melo, A.;Sturdy, J.;Ross, I.
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:	2015-01-01
Issue Date:	2026-04-23 12:10:18 (UTC+8)
Publisher:	Springer New York;Berlin/Heidelberg: Springer Berlin Heidelberg
Abstract:	摘要： The purely electroweak (EW) cross section for the production of two jets in association with a Z boson, in proton–proton collisions at s = 8 TeV , is measured using data recorded by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 19.7 fb -1 . The electroweak cross section for the ℓ ℓ jj final state (with ℓ = e or μ and j representing the quarks produced in the hard interaction) in the kinematic region defined by M ℓ ℓ > 50 GeV , M jj > 120 GeV , transverse momentum p T j > 25 GeV , and pseudorapidity \| η j \| < 5 , is found to be σ EW ( ℓ ℓ jj ) = 174 ± 15 (stat) ± 40 (syst) \,fb , in agreement with the standard model prediction. The associated jet activity of the selected events is studied, in particular in a signal-enriched region of phase space, and the measurements are found to be in agreement with QCD predictions. 其他題名： Eur. Phys. J. C 出版者： Berlin/Heidelberg: Springer Berlin Heidelberg 出版日期： 2015-02 出處： The European physical journal. C, Particles and fields, 2015-02, Vol.75 (2) 資源來源： Publicly Available Content Database 版權： CERN for the benefit of the CMS collaboration 2015 識別號： ISSN: 1434-6044 識別號： EISSN: 1434-6052 識別號： DOI: 10.1140/epjc/s10052-014-3232-5
Appears in Collections:	[Department of Physics] journal & Dissertation

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