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

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

CMS

Collaboration

2019

18 pages

Report number:

CMS-PAS-HIG-19-004

Experiments:

CERN-LHC-CMS

View in:

CERN Document Server

reference search17 citations

Citations per year

Abstract:

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 in 2016 with the CMS detector at a center-of-mass energy of 13 TeV. The Higgs boson mass is measured to be

m_\text{H}

= 125.78

\pm

0.26 GeV. This is combined with a measurement of

m_\text{H}

already performed in the H

\rightarrow

ZZ

^{*}

\rightarrow 4l

decay channel using the same dataset, giving

m_\text{H}

= 125.46

\pm

0.17 GeV. This result, when combined with an earlier measurement of the Higgs boson mass using data collected in 2011 and 2012 with the CMS detector, gives a value for the Higgs boson mass of

m_\text{H}

= 125.35

\pm

0.15 GeV. In this note we summarize the strategy of this measurement in the H

\rightarrow \gamma \gamma

final state emphasizing the methods employed to mitigate and to quantify the main sources of systematic uncertainty. The combination strategy is also described.

Note:

Preliminary results

Monte-Carlo
p p: scattering
p p: colliding beams
Higgs particle: hadroproduction
Higgs particle: radiative decay
photon: pair production
Higgs particle: mass: measured
mass spectrum: two-photon
mass spectrum: (2photon)
CMS

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