ATLAS, and Collaborations, CMS
(2023)
Evidence for the Higgs boson decay to a $Z$ boson and a photon at the
LHC.
[Preprint]
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 fb$^{-1}$ for each experiment, at a center-of-mass energy of 13 TeV. The measured signal yield is $2.2\pm0.7$ times the Standard Model prediction, and agrees with the theoretical expectation within 1.9 standard deviations.
| Item Type: | Preprint |
|---|---|
| Additional Information: | 48 pages in total, author list starting page 12, 3 figures. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2022-22/ |
| Uncontrolled Keywords: | hep-ex, hep-ex |
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 27 Feb 2024 16:06 |
| Last Modified: | 26 Mar 2024 08:26 |
| Open Access URL: | https://journals.aps.org/prl/pdf/10.1103/PhysRevLe... |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3178913 |
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