Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC

G. Aad, T.P.A. Åkesson, C. Doglioni, V. Hedberg, H. Herde, B. Konya, E. Lytken, R. Poettgen, N.D. Simpson, O. Smirnova, I. Zhizhin, A. Zhokin, ATLAS Collaboration

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Sammanfattning

The first evidence for the Higgs boson decay to a Z boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by the ATLAS and CMS Collaborations with proton-proton collision datasets collected at the CERN Large Hadron Collider (LHC) from 2015 to 2018. These correspond to integrated luminosities of around 140  fb^{-1} for each experiment, at a center-of-mass energy of 13 TeV. The measured signal yield is 2.2±0.7 times the standard model prediction, and agrees with the theoretical expectation within 1.9 standard deviations.
Originalspråkengelska
Artikelnummer021803
TidskriftPhysical Review Letters
Volym132
Nummer2
DOI
StatusPublished - 2024

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