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Measurement of the production cross section for a Wboson and two bjets in ppcollisions at vs=7TeV

Abstract: The production cross section for a W boson and two b jets is measured using proton–proton collisions at vs=7TeV in a data sample collected with the CMS experiment at the LHC corresponding to an integrated luminosity of 5.0 fb-1. The W +bb events are selected in the W ?µ? decay mode by requiring a muon with transverse momentum pT>25GeV and pseudorapidity |?| <2.1, and exactly two b-tagged jets with pT>25 GeV and |?| <2.4. The measured W +bb production cross section in the fiducial region, calculated at the level of final-state particles, is s(pp ?W +bb) ×B(W ?µ?) =0.53 ±0.05 (stat.)±0.09 (syst.)±0.06 (theo.)±0.01 (lum.) pb, in agreement with the standard model prediction. In addition, kinematic distributions of the W +bb system are in agreement with the predictions of a simulation using MADGRAPH and PYTHIA.

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

 Fuente: Physics Letters B, Vol. 735, Pp. 204–225, (2014)

Editorial: Elsevier

 Fecha de publicación: 01/07/2014

Nº de páginas: 22

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.physletb.2014.06.041

ISSN: 0370-2693,1873-2445

Url de la publicación: https://doi.org/10.1016/j.physletb.2014.06.041

Autores/as

CHATRCHYAN, SERGUEI

JAVIER ANDRES BROCHERO CIFUENTES

SHANHUEI CHUANG

MARCOS FERNANDEZ GARCIA

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

FRANCISCA JAVIELA MUÑOZ SANCHEZ

ANA YAIZA RODRIGUEZ MARRERO