Measurement of the Higgs boson mass in the H -> ZZ* -> 4l and H -> gamma gamma channels with root s=13 TeV pp collisions using the ATLAS detector [Elektronisk resurs]

<p>For complete list of authors see http://dx.doi.org/10.1016/j.physletb.2018.07.050</p>
Published
Vetenskapsrådet
EU, Europeiska forskningsrådet
EU, FP7, Sjunde ramprogrammet
EU, Horisont 2020
Wallenbergstiftelserna
gratis
The mass of the Higgs boson is measured in the H -> ZZ* -> 4l and in the H -> gamma gamma decay channels with 36.1 fb(-1) of proton-proton 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 H -> ZZ* -> 4l channel is m(H)(ZZ*) = 124.79 +/- 0.37 GeV, while the measured value in the H -> gamma gamma channel is m(H)(gamma gamma) = 124.93 +/- 0.40 GeV. Combining these results with the ATLAS measurement based on 7 and 8 TeV proton-proton collision data yields a Higgs boson mass of m(H) = 124.97 +/- 0.24 GeV.

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Measurement of the Higgs boson mass in the H -&gt; ZZ* -&gt; 4l and H -&gt; gamma gamma channels with root s=13 TeV pp collisions using the ATLAS detector [Elektronisk resurs]