ATLAS

PUBLISHED

SM

Measurement of the Higgs boson mass in the

H\rightarrow ZZ^* \rightarrow 4\ell

and

H \rightarrow \gamma\gamma

channels with

\sqrt{s}=13

TeV

pp

collisions using the ATLAS detector

The mass of the Higgs boson is measured in the HâZZââ4â and in the HâÎ³Î³ decay channels with 36.1 fb â1 of protonâproton collision data from the Large Hadron Collider at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector in 2015 and 2016. The measured value in the HâZZââ4â channel is mHZZâ=124.79Â±0.37GeV , while the measured value in the HâÎ³Î³ channel is mHÎ³Î³=124.93Â±0.40GeV . Combining these results with the ATLAS measurement based on 7 and 8 TeV protonâproton collision data yields a Higgs boson mass of mH=124.97Â±0.24GeV .

Files

http://cds.cern.ch/record/2621113/files/Mass-arxiv.pdf http://cds.cern.ch/record/2621113/files/Mass-arxiv.pdf?subformat=pdfa http://cds.cern.ch/record/2621113/files/scoap3-fulltext.pdf http://cds.cern.ch/record/2621113/files/1806.00242.pdf http://cds.cern.ch/record/2621113/files/arXiv:1806.00242.pdf

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