Measurement of t t ¯ production with additional jet activity, including b quark jets, in the dilepton decay channel using pp collisions at √s = 8 TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105228

Title:	Measurement of t t ¯ production with additional jet activity, including b quark jets, in the dilepton decay channel using pp collisions at √s = 8 TeV
Authors:	余欣珊;Asilar, E.;Cornelis, T.;De Wolf, E. A.;De Bruyn, I.;Keaveney, J.;Olbrechts, A.;Benucci, L.;Caudron, A.;Quertenmont, L.;Da Costa, E. M.;Bernardes, C. A.;Gregores, E. M.;Chen, M.;Brigljevic, V.;Fabbro, B.;Dietz-Laursonn, E.;Heidemann, C.;Reithler, H.;Mankel, R.;Mussgiller, A.;Ntomari, E.;Draeger, A. R.;Erfle, J.;Junkes, A.;Schettler, H.;Akbiyik, M.;De Boer, W.;Sarkar, S.;Topkar, A.;Dewanjee, R. K.;Masetti, G.;Chiorboli, M.;Gori, V.;Lanza, G.;Lista, L.;Merola, M.;Thyssen, F.;Santocchia, A.;Androsov, K.;Boccali, T.;Fiori, F.;La Licata, C.;Choi, S.;Yoo, H. D.;Komaragiri, J. R.;Hoorani, H. R.;Gavrilenko, M.;Zarubin, A.;Safronov, G.;Bylinkin, A.;Boos, E.;Alcaraz Maestre, J.;Fernandez, M.;Marco, J.;Bendavid, J.;Dupont, N.;Hammer, J.;Krajczar, K.;Kaestli, H. C.;Ngadiuba, J.;Grundler, U.;Ozturk, S.;Grimes, M.;Worm, S. D.;Baber, M.;Malik, S.;Hatakeyama, K.;Cox, P. T.;Kennedy, E.;Pierini, M.;Vogel, H.;Skinnari, L.;Sun, W.;Banerjee, S.;Green, D.;Harris, R. M.;Lykken, J.;Weber, H. A.;Ogul, H.;Majumder, D.;Mohammadi, A.;Gomez, J. A.;Tonwar, S. C.;Velicanu, D.;Klapoetke, K.;Oliveros, S.;Kravchenko, I.;Schmitt, M.;Musienko, Y.;Bylsma, B.;Harel, A.;Khukhunaishvili, A.;Petrillo, G.;Arora, S.;Park, M.;York, A.;Pakhotin, Y.;Safonov, A.;Hervé, A.;Loveless, R.
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 12:11:59 (UTC+8)
Publisher:	Springer New York;Berlin/Heidelberg: Springer Berlin Heidelberg
Abstract:	摘要： Jet multiplicity distributions in top quark pair ( t t ¯ ) events are measured in pp collisions at a centre-of-mass energy of 8 TeV with the CMS detector at the LHC using a data set corresponding to an integrated luminosity of 19.7 fb -1 . The measurement is performed in the dilepton decay channels ( e + e - , μ + μ - , and e ± μ ∓ ). The absolute and normalized differential cross sections for t t ¯ production are measured as a function of the jet multiplicity in the event for different jet transverse momentum thresholds and the kinematic properties of the leading additional jets. The differential t t ¯ b and t t ¯ b b ¯ cross sections are presented for the first time as a function of the kinematic properties of the leading additional b jets. Furthermore, the fraction of events without additional jets above a threshold is measured as a function of the transverse momenta of the leading additional jets and the scalar sum of the transverse momenta of all additional jets. The data are compared and found to be consistent with predictions from several perturbative quantum chromodynamics event generators and a next-to-leading order calculation. 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： Publicly Available Content Database 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/s10052-016-4105-x
Appears in Collections:	[Department of Physics] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	20	View/Open

社群 sharing

Loading...