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Article
Report number arXiv:2309.03501 ; CERN-EP-2023-157 ; CMS-HIG-23-002
Title Evidence for the Higgs boson decay to a Z boson and a photon at the LHC
Related titleEvidence for the Higgs boson decay to a Z boson and a photon at the LHC
Author(s) ATLAS Collaboration  Zeige alle 5264 Autoren
Corporate Author(s) ATLAS Collaboration ; CMS Collaboration
Publication 2024-01-11
Imprint 07 Sep 2023
Number of pages 32
Note 48 pages in total, author list starting page 11, 3 figures, 0 tables, submitted to PRL. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2022-22/
In: Phys. Rev. Lett. 132 (2024) 021803
DOI 10.1103/PhysRevLett.132.021803
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS ; CMS
Free keywords Higgs physics ; particle and resonance production ; experimental results ; Higgs decay to Z and photon ; Rare Higgs decays
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 data sets collected at the CERN Large Hadron Collider (LHC) from 2015 to 2018. These correspond to integrated luminosities of around 140 fb1 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.
Related document supersedes: ATLAS-CONF-2023-025, CMS-PAS-HIG-23-002
Copyright/License Preprint: © 2023-2025 CERN (License: CC-BY-4.0)



Corresponding record in: Inspire
Email contact: tatjana.lenz@cern.ch


 Datensatz erzeugt am 2023-09-07, letzte Änderung am 2024-12-25


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