A Measurement of the Higgs Boson Mass in the Diphoton Decay Channel

Physics Letters B 2020
Viesturs Veckalns

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.

Keywords
CMS | diphoton | Higgs
DOI
10.1016/j.physletb.2020.135425
Hyperlink
https://www.sciencedirect.com/science/article/pii/S037026932030229X?via%3Dihub

Veckalns, V., CERN international group of authors. A Measurement of the Higgs Boson Mass in the Diphoton Decay Channel. Physics Letters B, 2020, Vol. 805, Article number 135425. ISSN 0370-2693. Available from: doi:10.1016/j.physletb.2020.135425

Publication language
English (en)