Measurement of the Higgs boson mass in the $H\to Z{Z}^{\ast }\to 4\ell$ and $H\to \gamma \gamma$ channels with $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector

Abstract

The mass of the Higgs boson is measured in the $H\to Z{Z}^{\ast }\to 4\ell$ and in the $H\to \gamma \gamma$ 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 $H\to Z{Z}^{\ast }\to 4\ell$ channel is $m_H^{Z{Z}^{\ast }}=124.79\pm 0.37$ GeV, while the measured value in the $H\to \gamma \gamma$ channel is $m_H^{\gamma \gamma }=124.93\pm 0.40$ GeV. Combining these results with the ATLAS measurement based on 7 TeV and 8 TeV proton-proton collision data yields a Higgs boson mass of $m_H=124.97\pm 0.24$ GeV.

Comments: 39 pages in total, author list starting page 23, 4 figures, 1 tables, published in Phys Lett B. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-33

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