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

Journal Contribution - Journal Article

A measurement of the mass of the Higgs boson in the diphoton decay channel is presented. This analysis is based on 35.9 fb$^{-1}$ of proton-proton collision data collected during the 2016 LHC running period, with the CMS detector at a center-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 $m_\mathrm{H} =$ 125.78 $\pm$ 0.26 GeV. This is combined with a measurement of $m_\mathrm{H}$ already performed in the H $\to$ ZZ $\to$ 4$\ell$ decay channel using the same data set, giving $m_\mathrm{H} =$ 125.46 $\pm$ 0.16 GeV. This result, when further combined with an earlier measurement of $m_\mathrm{H}$ using data collected in 2011 and 2012 with the CMS detector, gives a value for the Higgs boson mass of $m_\mathrm{H} =$ 125.38 $\pm$ 0.14 GeV. This is currently the most precise measurement of the mass of the Higgs boson.
Journal: Phys.Lett.B
ISSN: 0370-2693
Volume: 805
Number of pages: 25
Publication year:2020
  • Scopus Id: 85083661454
  • ORCID: /0000-0002-7366-7098/work/75206567
  • ORCID: /0000-0002-9598-6241/work/75206784
  • ORCID: /0000-0002-8564-8732/work/75207107
  • DOI: https://doi.org/10.1016/j.physletb.2020.135425
  • ORCID: /0000-0002-6792-9522/work/79142539
  • ArticleNumber: 135425