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



Aad, G ORCID: 0000-0002-6665-4934, Abbott, B, Abeling, K, Abicht, NJ ORCID: 0000-0001-5763-2760, Abidi, SH, Aboulhorma, A ORCID: 0000-0002-9987-2292, Abramowicz, H ORCID: 0000-0001-5329-6640, Abreu, H, Abulaiti, Y ORCID: 0000-0003-0403-3697, Acharya, BS
et al (show 5283 more authors) (2024) Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC. Physical review letters, 132 (2). 021803-.

Access the full-text of this item by clicking on the Open Access link.

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.

Item Type: Article
Uncontrolled Keywords: ATLAS Collaboration, CMS Collaboration
Divisions: Faculty of Health and Life Sciences
Faculty of Science and Engineering > School of Physical Sciences
Faculty of Health and Life Sciences > Institute of Systems, Molecular and Integrative Biology
Depositing User: Symplectic Admin
Date Deposited: 16 Feb 2024 09:53
Last Modified: 06 Apr 2024 11:43
DOI: 10.1103/physrevlett.132.021803
Open Access URL: https://journals.aps.org/prl/abstract/10.1103/Phys...
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3178684