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

M. Aaboud, G. Aad, B. Abbott, O. Abdinov, B Abeloos, Ossama Sherif Alexander Abouzeid, NL Abraham, H. Abramowicz, H. Abreu, Y. Abulaiti, B.S. Acharya, Shin-ichi Adachi, L. Adamczyk, J. Adelman, M. Adersberger, T. Adye, A. A. Affolder, Y. Afik, C. Agheorghiesei, Milena BajicGeert-Jan Besjes, Flavia de Almeida Dias, Mogens Dam, Gorm Aske Gram Krohn Galster, Alejandro Alonso Diaz, Jørgen Beck Hansen, Peter Henrik Hansen, Jørn Dines Hansen, James William Monk, Simon Holm Stark, Troels Christian Petersen, Stefania Xella, Fabian Alexander Jürgen Thiele, Graig Wiglesworth

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Abstract

The mass of the Higgs boson is measured in the H→ZZ→4ℓ and in the H→γγ 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 mH ZZ =124.79±0.37GeV, while the measured value in the H→γγ channel is mH γγ=124.93±0.40GeV. Combining these results with the ATLAS measurement based on 7 and 8 TeV proton–proton collision data yields a Higgs boson mass of mH=124.97±0.24GeV.

OriginalsprogEngelsk
TidsskriftPhysics Letters B
Vol/bind784
Sider (fra-til)345-366
Antal sider22
ISSN0370-2693
DOI
StatusUdgivet - 10 sep. 2018

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