Search for short- and long-lived axion-like particles in H→aa→4γ decays with the ATLAS experiment at the LHC


Aad G., Abbott B., Abeling K., Abicht N., Abidi S., Aboulhorma A., ...More

European Physical Journal C, vol.84, no.7, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 84 Issue: 7
  • Publication Date: 2024
  • Doi Number: 10.1140/epjc/s10052-024-12979-0
  • Journal Name: European Physical Journal C
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, zbMATH, Directory of Open Access Journals
  • Istanbul University Affiliated: Yes

Abstract

Presented is the search for anomalous Higgs boson decays into two axion-like particles (ALPs) using the full Run 2 data set of 140fb-1 of proton-proton collisions at a centre-of-mass energy of 13TeV recorded by the ATLAS experiment. The ALPs are assumed to decay into two photons, providing sensitivity to recently proposed models that could explain the (g-2)μ discrepancy. This analysis covers an ALP mass range from 100 to 62GeV and ALP-photon couplings in the range 10-7TeV-1