Searches for exclusive Higgs boson decays into D*γ and Z boson decays into D0γ and K0sγ in pp collisions at √s=13 TeV with the ATLAS detector



Aad, G, Aakvaag, E, Abbott, B, Abeling, K, Abicht, NJ, Abidi, SH, Aboulhorma, A, Abramowicz, H, Abreu, H, Abulaiti, Y
et al (show 2909 more authors) (2024) Searches for exclusive Higgs boson decays into D*γ and Z boson decays into D0γ and K0sγ in pp collisions at √s=13 TeV with the ATLAS detector PHYSICS LETTERS B, 855. p. 138762. ISSN 0370-2693, 1873-2445

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

Abstract

Searches for exclusive decays of the Higgs boson into D<sup>⁎</sup>γ and of the Z boson into D<sup>0</sup>γ and K<inf>s</inf> <sup>0</sup>γ can probe flavour-violating Higgs boson and Z boson couplings to light quarks. Searches for these decays are performed with a pp collision data sample corresponding to an integrated luminosity of 136.3 fb<sup>−1</sup> collected at s=13TeV between 2016–2018 with the ATLAS detector at the CERN Large Hadron Collider. In the D<sup>⁎</sup>γ and D<sup>0</sup>γ channels, the observed (expected) 95% confidence-level upper limits on the respective branching fractions are B(H→D<sup>⁎</sup>γ)<1.0(1.2)×10<sup>−3</sup>, B(Z→D<sup>0</sup>γ)<4.0(3.4)×10<sup>−6</sup>, while the corresponding results in the K<inf>s</inf> <sup>0</sup>γ channel are B(Z→K<inf>s</inf> <sup>0</sup>γ)<3.1(3.0)×10<sup>−6</sup>.

Item Type: Article
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 01 Jul 2024 09:35
Last Modified: 23 May 2026 08:52
DOI: 10.1016/j.physletb.2024.138762
Open Access URL: https://www.sciencedirect.com/science/article/pii/...
Related Websites:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3182559
Disclaimer: The University of Liverpool is not responsible for content contained on other websites from links within repository metadata. Please contact us if you notice anything that appears incorrect or inappropriate.