A measurement of the Higgs boson mass in the diphoton decay channel

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A measurement of the Higgs boson mass in the diphoton decay channel

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sword-2020-11-20T14:05:49.original.xml (130 B)

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Date Issued

2020

Journal

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Publisher

Elsevier BV

Version

Final published version

Abstract

© 2020 The Author(s) A measurement of the mass of the Higgs boson in the diphoton decay channel is presented. This analysis is based on 35.9fb−1 of proton-proton collision data collected during the 2016 LHC running period, with the CMS detector at a centre-of-mass energy of 13 TeV. A refined detector calibration and new analysis techniques have been used to improve the precision of this measurement. The Higgs boson mass is measured to be mH=125.78±0.26GeV. This is combined with a measurement of mH already performed in the H→ZZ→4ℓ decay channel using the same data set, giving mH=125.46±0.16GeV. This result, when further combined with an earlier measurement of mH using data collected in 2011 and 2012 with the CMS detector, gives a value for the Higgs boson mass of mH=125.38±0.14GeV. This is currently the most precise measurement of the mass of the Higgs boson.

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Creative Commons Attribution 4.0 International license

https://creativecommons.org/licenses/by/4.0/

Persistent DSpace Link

https://hdl.handle.net/1721.1/133699

DOI of Published Version

10.1016/J.PHYSLETB.2020.135425