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 | ||
CMS Collaboration | ||
March 2019 | ||
Abstract: Properties of the Higgs (H) boson are measured in the H→ZZ→4ℓ (ℓ= 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 fb−1 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 4ℓ channel to the Standard Model (SM) expectation, is measured to be μ= 0.94+0.07−0.07(stat.)+0.08−0.07(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 H→4ℓ in a fiducial region closely matching the experimental selection of the leptons is measured to be σfid.= 2.73+0.23−0.22(stat.)+0.24−0.19(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. | ||
Links:
CDS record (PDF) ;
inSPIRE record ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, EPJC 81 (2021) 488. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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