Aad, G.Abbott, B.Abeling, K.The ATLAS CollaborationKuleshov, S.Olivares Pino, S. A.Zamora Saa, A. A.2025-01-092025-01-092023-12Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. Volume 847. 10 December 2023. Article number 1383150370-2693https://repositorio.unab.cl/handle/ria/62953Indexación: ScopusThe mass of the Higgs boson is measured in the H→γγ decay channel, exploiting the high resolution of the invariant mass of photon pairs reconstructed from the decays of Higgs bosons produced in proton–proton collisions at a centre-of-mass energy s=13 TeV. The dataset was collected between 2015 and 2018 by the ATLAS detector at the Large Hadron Collider, and corresponds to an integrated luminosity of 140 fb−1. The measured value of the Higgs boson mass is 125.17±0.11(stat.)±0.09(syst.) GeV and is based on an improved energy scale calibration for photons, whose impact on the measurement is about four times smaller than in the previous publication. A combination with the corresponding measurement using 7 and 8 TeV pp collision ATLAS data results in a Higgs boson mass measurement of 125.22±0.11(stat.)±0.09(syst.) GeV. With an uncertainty of 1.1 per mille, this is currently the most precise measurement of the mass of the Higgs boson from a single decay channel. © 2023 The Author(s)enHadronLeptonStandard ModelHiggs BosonHadron ColliderLuminosity of 140 fb−113 TeV.ArtículoAttribution 4.0 International Deed (CC BY 4.0)10.1016/j.physletb.2023.138315