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Measurement of the W? and Z? inclusive cross sections in pp collisions at vs = 7??TeV and limits on anomalous triple gauge boson couplings

Abstract: Measurements of W? and Z? production in proton-proton collisions at vs = 7??TeV are used to extract limits on anomalous triple gauge couplings. The results are based on data recorded by the CMS experiment at the LHC that correspond to an integrated luminosity of 5.0 fb-1. The cross sections are measured for photon transverse momenta p?T > 15 GeV, and for separations between photons and final-state charged leptons in the pseudorapidity-azimuthal plane of ?R(l,?) > 0.7 in l?? and ll? final states, where l refers either to an electron or a muon. A dilepton invariant mass requirement of mll > 50 GeV is imposed for the Z? process. No deviations are observed relative to predictions from the standard model, and limits are set on anomalous WW?, ZZ?, and Z?? triple gauge couplings.

 Fuente: Phys. Rev. D, Vol. 89, Num. 9, Pag. 092005 (2014)

 Publisher: American Physical Society

 Publication date: 01/05/2014

 No. of pages: 32

 Publication type: Artículo de Revista

 DOI: 10.1103/PhysRevD.89.092005

 ISSN: 1550-7998,1550-2368,2470-0010,2470-0029

 Spanish project: FPA2014-55295-C3-1-R ; FPA 2011-28694-C02-01

 Publication Url: https://doi.org/10.1103/PhysRevD.89.092005

Authorship

CHATRCHYAN, SERGUEI

JAVIER ANDRES BROCHERO CIFUENTES

SHANHUEI CHUANG

MARCOS FERNANDEZ GARCIA

CLARA JORDA LOPE

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

FRANCISCA JAVIELA MUÑOZ SANCHEZ

ANA YAIZA RODRIGUEZ MARRERO