Integrated fiducial cross sections for the production of four leptons via the H â 4â decays (â = e, μ) are measured in pp collisions at (Formula presented.) and 8TeV. Measurements are performed with data corresponding to integrated luminosities of 5.1 fbâ1 at 7TeV, and 19.7 fbâ1 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 â 4â cross section, and its ratio to the H â 4â 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 â 4â fiducial cross section is measured to be 0. 56â 0.44+ 0.67(stat)â 0.06+ 0.21(syst) fb at 7 TeV, and 1. 11â 0.35+ 0.41(stat)â 0.10+ 0.14(syst) fb at 8 TeV. The measurements are found to be compatible with theoretical calculations based on the standard model.
Measurement of differential and integrated fiducial cross sections for Higgs boson production in the four-lepton decay channel in pp collisions at âs = 7 and 8 TeV
CAPPELLO, GIGI;COSTA, Salvatore;DI MATTIA, ALESSANDRO;GIORDANO, FERDINANDO;POTENZA, Renato Carlo;TRICOMI, Alessia Rita;TUVE', Cristina Natalina;
2016-01-01
Abstract
Integrated fiducial cross sections for the production of four leptons via the H â 4â decays (â = e, μ) are measured in pp collisions at (Formula presented.) and 8TeV. Measurements are performed with data corresponding to integrated luminosities of 5.1 fbâ1 at 7TeV, and 19.7 fbâ1 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 â 4â cross section, and its ratio to the H â 4â 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 â 4â fiducial cross section is measured to be 0. 56â 0.44+ 0.67(stat)â 0.06+ 0.21(syst) fb at 7 TeV, and 1. 11â 0.35+ 0.41(stat)â 0.10+ 0.14(syst) fb at 8 TeV. The measurements are found to be compatible with theoretical calculations based on the standard model.File | Dimensione | Formato | |
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