Sirunyan, AM;
Tumasyan, A;
Adam, W;
Ambrogi, F;
Bergauer, T;
Dragicevic, M;
Erö, J;
... Da Silveira, GG; + view all
(2020)
A measurement of the Higgs boson mass in the diphoton decay channel.
Physics Letters B
, 805
, Article 135425. 10.1016/j.physletb.2020.135425.
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Abstract
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 m_{H} = 125.78 ± 0.26 GeV. This is combined with a measurement of mH already performed in the H → ZZ → 4ℓ decay channel using the same data set, giving m_{H} = 125.46 ± 0.16 GeV. 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 m_{H} = 125.38 ± 0.14 GeV. This is currently the most precise measurement of the mass of the Higgs boson.
| Type: | Article |
|---|---|
| Title: | A measurement of the Higgs boson mass in the diphoton decay channel |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.physletb.2020.135425 |
| Publisher version: | https://doi.org/10.1016/j.physletb.2020.135425 |
| Language: | English |
| Additional information: | © 2020 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | CMS, Higgs, diphoton |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10097468 |
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