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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.

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

 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

Autores/as

KHACHATRYAN, VLADIMIR

JUAN RAMON CASTIÑEIRAS DE SAA

PABLO DE CASTRO MANZANO

JUAN GARCIA FERRERO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

FRANCISCA JAVIELA MUÑOZ SANCHEZ

ANA YAIZA RODRIGUEZ MARRERO