Loading [MathJax]/jax/output/HTML-CSS/jax.js
CMS logoCMS event Hgg
Compact Muon Solenoid
LHC, CERN

CMS-PAS-HIG-19-001
Measurements of properties of the Higgs boson in the four-lepton final state in proton-proton collisions at s= 13 TeV
Abstract: Properties of the Higgs (H) boson are measured in the HZZ4 (= e, μ) decay channel. The full data sample of proton-proton collisions at a center-of-mass energy of 13 TeV is used, corresponding to an integrated luminosity of 137.1 fb1 recorded in 2016, 2017, and 2018 by the CMS detector at the LHC. The signal-strength modifier μ, defined as the ratio of the H boson rate in the 4 channel to the Standard Model (SM) expectation, is measured to be μ= 0.94+0.070.07(stat.)+0.080.07(syst.) with the H boson mass profiled in the fit. The signal-strength modifiers for different H boson production modes are also constrained. Measurements of the simplified template cross sections, designed to quantify the different H boson production processes in specific regions of phase space, are reported. The cross section for the production of the H4 in a fiducial region closely matching the experimental selection of the leptons is measured to be σfid.= 2.73+0.230.22(stat.)+0.240.19(syst.) fb at mH= 125.09 GeV, compared to a SM prediction of 2.76 ± 0.14 fb. Differential cross sections as a function of the pT and rapidity of the H boson, the number of associated jets, and the pT of the leading associated jet are determined. All results are found to be compatible with the SM predictions, within the measurements precision.
CMS Publications
Compact Muon Solenoid
LHC, CERN