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arXiv, 2023

DOI: 10.48550/arxiv.2308.04775

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Combined measurement of the Higgs boson mass from the $H\toγγ$ and $H\to ZZ^{*} \to 4\ell$ decay channels with the ATLAS detector using $\sqrt{s}$ = 7, 8 and 13 TeV $pp$ collision data

Journal article published in 2023 by Georges Aad ORCID, Konie Al Khoury, Cristian Andres Allendes Flores, Manuel Alvarez Estevez, Adrian Alvarez Fernandez, Yara Coutinho, Susana Amor Santos, Javier Alberto Aparisi Pozo, Sergio Javier Arbiol Val, Marlon, Barillari Teresa, Diego Baron Moreno, Laura Barranco Navarro, Joao Guimaraes da Costa, Michael and other authors.
This paper was not found in any repository; the policy of its publisher is unknown or unclear.
This paper was not found in any repository; the policy of its publisher is unknown or unclear.

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Abstract

A measurement of the mass of the Higgs boson combining the $H\to ZZ^{*} \to 4\ell$ and $H\toγγ$ 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 centre-of-mass energy of 13 TeV combined with the Run 1 ATLAS mass measurement, 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.