Study of Z production in PbPb and pp collisions at (Formula presented.) TeV in the dimuon and dielectron decay channels

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/108127

Title:	Study of Z production in PbPb and pp collisions at (Formula presented.) TeV in the dimuon and dielectron decay channels
Authors:	余欣珊;Chatrchyan, S;Ghete, V M;Liko, D;Treberer-treberspurg, W;Keaveney, J;Gay, A P;R;Adler, V;Ocampo Rios, A A;Thyssen, F;Basegmez, S;Pagano, D;Fernandez Perez Tomei, T R;Padula, Sandra S;Genchev, V;Rodozov, M;Florez, C;Mousa, J;Finger, M;Lindén, T;Charlot, C;Filipovic, N;Goerlach, U;Raupach, F;Krücker, D;Nowak, F;Poehlsen, J;Schleper, P;Troendle, D;Böser, C;Giffels, M;Hartmann, F;Choudhary, B C;Mukherjee, S;Felcini, M;Capiluppi, P;Giacomelli, P;Pozzobon, N;Ciangottini, D;Foà, L;Vernieri, C;Jorda, C;Longo, E;Montanino, D;Schizzi, A;Sakharov, A;Son, D C;Lopez-fernandez, R;Hoorani, H R;Kalinowski, A;Kim, V;Vavilov, S;Dermenev, A;Escalante Del Valle, A;Gonzalez Lopez, O;Quintario Olmeda, A;Fernandez, M;Auzinger, G;Harris, P;Innocente, V;Sakulin, H;Deiters, K;Renker, D;Rebane, L;Onengut, G;Vardarli, F I;Tomalin, I R;Jarvis, M;Pesaresi, M;Raymond, D M;Liu, H;Swanson, J;Jandir, P;Dishaw, A;George, C;Nauenberg, U;Eggert, N;Sun, W;Klima, B;Whitbeck, A;Rinkevicius, A;Hagopian, S;Cavanaugh, R;Onel, Y;Rahmat, R;Fehling, D;Saini, L K;Zanetti, M;Kao, S C;Singovsky, A;Keller, J;Chan, K M;Planer, M;Lopes Pegna, D;Radburn-smith, B C;Harel, A;Mesropian, C;Halkiadakis, E;Walker, M;Volobouev, I;Greene, S
Contributors:	理學院物理學系
Keywords:	High energy physics
Date:	2015-01-01
Issue Date:	2026-04-23 14:36:53 (UTC+8)
Publisher:	Springer Verlag;Heidelberg: Springer Nature B.V
Abstract:	摘要： Abstract The production of Z bosons is studied in the dimuon and dielectron decay channels in PbPb and pp collisions at ... TeV, using data collected by the CMS experiment at the LHC. The PbPb data sample corresponds to an integrated luminosity of about 166 [mu]b-1, while the pp data sample collected in 2013 at the same nucleon-nucleon centre-of-mass energy has an integrated luminosity of 5.4 pb-1. The Z boson yield is measured as a function of rapidity, transverse momentum, and collision centrality. The ratio of PbPb to pp yields, scaled by the number of inelastic nucleon-nucleon collisions, is found to be 1.06 ± 0.05 (stat) ± 0.08 (syst) in the dimuon channel and 1.02 ± 0.08 (stat) ± 0.15 (syst) in the dielectron channel, for centrality-integrated Z boson production. This binary collision scaling is seen to hold in the entire kinematic region studied, as expected for a colourless probe that is unaffected by the hot and dense QCD medium produced in heavy ion collisions. [Figure not available: see fulltext.] 出版者： Heidelberg: Springer Nature B.V 出版日期： 2015-03-01 出處： The journal of high energy physics, 2015-03, Vol.2015 (3), p.1 資源來源： Publicly available content database 版權： Journal of High Energy Physics is a copyright of Springer, 2015. 識別號： EISSN: 1029-8479 識別號： DOI: 10.1007/JHEP03(2015)022
Appears in Collections:	[Department of Physics] journal & Dissertation

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