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Torsten ÅKESSON

Torsten Åkesson

Professor

Torsten ÅKESSON

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

Author

  • G. Aad
  • T.P.A. Åkesson
  • C. Doglioni
  • P.A. Ekman
  • V. Hedberg
  • H. Herde
  • B. Konya
  • E. Lytken
  • R. Poettgen
  • N.D. Simpson
  • O. Smirnova
  • L. Zwalinski

Summary, in English

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

Department/s

  • Particle and nuclear physics
  • eSSENCE: The e-Science Collaboration
  • Department of Physics

Publishing year

2024

Language

English

Publication/Series

European Physical Journal C

Volume

84

Issue

7

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • Bosons
  • Tellurium compounds
  • Vanadium compounds
  • A-center
  • ATLAS experiment
  • Center-of-mass energies
  • Centre-of-mass energies
  • Data set
  • Higgs Boson decay
  • Particle mass
  • Proton proton collisions
  • The standard model
  • Two photon
  • Photons

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6044