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Measurement of differential and integrated fiducial cross sections for Higgs boson production in the four-lepton decay channel in pp collisions at ?s = 7 and 8 TeV

Abstract: Integrated fiducial cross sections for the production of four leptons via the H ? 4? decays (? = e, ?) are measured in pp collisions at (Formula presented.) and 8TeV. Measurements are performed with data corresponding to integrated luminosities of 5.1 fb?1 at 7TeV, and 19.7 fb?1 at 8 TeV, collected with the CMS experiment at the LHC. Differential cross sections are measured using the 8 TeV data, and are determined as functions of the transverse momentum and rapidity of the four-lepton system, accompanying jet multiplicity, transverse momentum of the leading jet, and difference in rapidity between the Higgs boson candidate and the leading jet. A measurement of the Z ? 4? cross section, and its ratio to the H ? 4? cross section is also performed. All cross sections are measured within a fiducial phase space defined by the requirements on lepton kinematics and event topology. The integrated H ? 4? fiducial cross section is measured to be 0. 56? 0.44 + 0.67(stat)? 0.06 + 0.21(syst) fb at 7 TeV, and 1. 11? 0.35 + 0.41(stat)? 0.10 + 0.14(syst) fb at 8 TeV. The measurements are found to be compatible with theoretical calculations based on the standard model.

 Fuente: Journal of High Energy Physics, Vol. 2016, Num. 4, Art. Num. 5

 Editorial: Springer Verlag

 Fecha de publicación: 01/04/2016

 Nº de páginas: 46

 Tipo de publicación: Artículo de Revista

 DOI: 10.1007/JHEP04(2016)005

 ISSN: 1126-6708,1029-8479

 Url de la publicación: https://doi.org/10.1007/JHEP04(2016)005

Autoría

JUAN RAMON CASTIÑEIRAS DE SAA

PABLO DE CASTRO MANZANO

MARCOS FERNANDEZ GARCIA

JUAN GARCIA FERRERO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

FRANCISCA JAVIELA MUÑOZ SANCHEZ

ANA YAIZA RODRIGUEZ MARRERO