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Compact Muon Solenoid
LHC, CERN

CMS-PAS-HIG-19-004
A measurement of the Higgs boson mass in the diphoton decay channel
Abstract: A measurement of the mass of the Higgs boson in the diphoton decay channel is presented. This analysis is based on 35.9 fb1 of proton-proton collision data collected in 2016 with the CMS detector at a center-of-mass energy of 13 TeV. The Higgs boson mass is measured to be mH = 125.78 ± 0.26 GeV. This is combined with a measurement of mH already performed in the HZZ4 decay channel using the same dataset, giving mH = 125.46 ± 0.17 GeV. This result, when combined with an earlier measurement of the Higgs boson mass using data collected in 2011 and 2012 with the CMS detector, gives a value for the Higgs boson mass of mH = 125.35 ± 0.15 GeV. In this note we summarize the strategy of this measurement in the Hγγ final state emphasizing the methods employed to mitigate and to quantify the main sources of systematic uncertainty. The combination strategy is also described.
CMS Publications
Compact Muon Solenoid
LHC, CERN