Evidence for the Higgs boson decay to a Z boson and a photon at the LHC

ATLAS and CMS Collaborations

Research output: Contribution to journalArticlepeer-review

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Abstract

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.
Original languageEnglish
Article number021803
Pages (from-to)021803-1-021803-32
Number of pages32
JournalPhysical Review Letters
Volume132
Issue number2
DOIs
Publication statusPublished - 12 Jan 2024
Externally publishedYes

Bibliographical note

Copyright the Author(s) 2024. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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