Combined Measurement of the Higgs Boson Mass from the H RIGHTWARDS ARROW γγ and H RIGHTWARDS ARROW ZZ RIGHTWARDS ARROW 4l Decay Channels with the ATLAS Detector Using s= 7, 8, and 13 TeV pp Collision Data
2023
Abstrakt
A measurement of the mass of the Higgs boson combining the H RIGHTWARDS ARROW ZZ RIGHTWARDS ARROW 4l and H RIGHTWARDS ARROW γγ 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 0.09ðstatÞ 0.06ðsystÞ 1/4 125.11 0.11 GeV. This corresponds to a 0.09% precision achieved on this fundamental parameter of the Standard Model of particle physics.