Measurement of electroweak production of two jets in association with a Z boson in proton-proton collisions at root s=8 TeV
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
21/10/2015
21/10/2015
10/02/2015
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Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) The purely electroweak (EW) cross section for the production of two jets in association with a Z boson, in proton-proton collisions at root 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 lljj final state (with l = e or mu and j representing the quarks produced in the hard interaction) in the kinematic region defined by M-ll > 50 GeV, M-jj > 120 GeV, transverse momentum p(Tj) > 25 GeV, and pseudorapidity vertical bar eta(j)vertical bar < 5, is found to be sigma(EW) (lljj) = 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. |
Formato |
35 |
Identificador |
http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-014-3232-5 European Physical Journal C. New York: Springer, v. 75, n. 66, 35 p., 2015. 1434-6044 http://hdl.handle.net/11449/129585 http://dx.doi.org/10.1140/epjc/s10052-014-3232-5 WOS:000354544800003 |
Idioma(s) |
eng |
Publicador |
Springer |
Relação |
European Physical Journal C |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |