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

The ATLAS Collaboration , The CMS Collaboration

Research output: Contribution to journalArticlepeer-review


The first evidence for the Higgs boson decay to a Formula Presented 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 Formula Presented for each experiment, at a center-of-mass energy of 13 TeV. The measured signal yield is Formula Presented times the standard model prediction, and agrees with the theoretical expectation within 1.9 standard deviations.

Original languageEnglish (US)
Article number021803
JournalPhysical review letters
Issue number2
StatePublished - Jan 12 2024

ASJC Scopus subject areas

  • General Physics and Astronomy


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