A measurement of the mass of the Higgs boson combining the H -> ZZ* -> 4l and H -> gamma gamma 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.
Aad, G., Abbott, B., Abeling, K., Abicht, N. ., Abidi, S. ., Aboulhorma, A., et al. (2023). Combined Measurement of the Higgs Boson Mass from the H→γγ and H→ZZ*→4ℓ Decay Channels with the ATLAS Detector Using s=7, 8, and 13 TeV pp Collision Data. PHYSICAL REVIEW LETTERS, 131(25) [10.1103/PhysRevLett.131.251802].
Combined Measurement of the Higgs Boson Mass from the H→γγ and H→ZZ*→4ℓ Decay Channels with the ATLAS Detector Using s=7, 8, and 13 TeV pp Collision Data
Aielli, G.
;Camarri, P.
;Cerrito, L.
;De Sanctis, U.
;Di Ciaccio, A.
;Giuli, F.
;
2023-01-01
Abstract
A measurement of the mass of the Higgs boson combining the H -> ZZ* -> 4l and H -> gamma gamma 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.| File | Dimensione | Formato | |
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