Combined Measurement of the Higgs Boson Mass from the Hâγγ and HâZZ
Phys Rev Lett
; 131(25): 251802, 2023 Dec 22.
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| ID: mdl-38181336
ABSTRACT
A measurement of the mass of the Higgs boson combining the HâZZ^{*}â4â and Hâγγ decay channels is presented. The result is based on 140 fb^{-1} of proton-proton collision data collected by the ATLAS detector during LHC run 2 at a center-of-mass energy of 13 TeV combined with the run 1 ATLAS mass measurement, performed at center-of-mass energies of 7 and 8 TeV, yielding a Higgs boson mass of 125.11±0.09(stat)±0.06(syst)=125.11±0.11 GeV. This corresponds to a 0.09% precision achieved on this fundamental parameter of the Standard Model of particle physics.
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