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Measurement of the W +W - cross section in pp collisions at ?s= 8 TeVand limits on anomalous gauge couplings

Abstract: A measurement of the W boson pair production cross section in proton-proton collisions at ?s = 8 TeV is presented. The data collected with the CMS detector at the LHC correspond to an integrated luminosity of 19.4fb-1. The W +W - candidates are selected from events with two charged leptons, electrons or muons, and large missing transverse energy. The measured W +W - cross section is 60.1 ± 0.9 (stat) ± 3.2 (exp) ± 3.1 (theo) ± 1.6 (lumi) pb = 60.1±4.8 pb, consistent with the standard model prediction. The W +W - cross sections are also measured in two different fiducial phase space regions. The normalized differential cross section is measured as a function of kinematic variables of the final-state charged leptons and compared with several perturbative QCD predictions. Limits on anomalous gauge couplings associated with dimension-six operators are also given in the framework of an effective field theory. The corresponding 95 % confidence level intervals are -5.7

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: European Physical Journal C, Vol. 76, Num. 7, Art. Num. 401, (2016)

Editorial: Springer New York LLC

 Fecha de publicación: 01/07/2016

Nº de páginas: 29

Tipo de publicación: Artículo de Revista

 DOI: 10.1140/epjc/s10052-016-4219-1

ISSN: 1434-6044,1434-6052

Url de la publicación: https://doi.org/10.1140/epjc/s10052-016-4219-1

Autores/as

KHACHATRYAN, VLADIMIR

JUAN RAMON CASTIÑEIRAS DE SAA

PABLO DE CASTRO MANZANO

ALBERTO GRAZIANO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

FRANCISCA JAVIELA MUÑOZ SANCHEZ

ANA YAIZA RODRIGUEZ MARRERO