Measurement of the Z gamma production cross section in pp collisions at 8 TeV and search for anomalous triple gauge boson couplings
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
---|---|
Data(s) |
21/10/2015
21/10/2015
29/04/2015
|
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 cross section for the production of Z gamma in proton-proton collisions at 8 TeV is measured based on data collected by the CMS experiment at the LHC corresponding to an integrated luminosity of 19.5 fb(-1). Events with an oppositely-charged pair of muons or electrons together with an isolated photon are selected. The differential cross section as a function of the photon transverse momentum is measured inclusively and exclusively, where the exclusive selection applies a veto on central jets. The observed cross sections are compatible with the expectations of next-to-next-to-leading-order quantum chromodynamics. Limits on anomalous triple gauge couplings of ZZ gamma and Z gamma gamma are set that improve on previous experimental results obtained with the charged lepton decay modes of the Z boson. |
Formato |
1-40 |
Identificador |
http://link.springer.com/article/10.1007%2FJHEP04%282015%29164 Journal Of High Energy Physics. New York: Springer, n. 4, p. 1-40, 2015. 1029-8479 http://hdl.handle.net/11449/129579 http://dx.doi.org/10.1007/JHEP04(2015)164 WOS:000353818600001 WOS000353818600001.pdf |
Idioma(s) |
eng |
Publicador |
Springer |
Relação |
Journal Of High Energy Physics |
Direitos |
openAccess |
Palavras-Chave | #Hadron-Hadron Scattering |
Tipo |
info:eu-repo/semantics/article |