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Axion-like Particles Implications for High-Energy Astrophysics

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arxiv 2205.00940 v1 pith:TCY3XZAL submitted 2022-05-02 hep-ph astro-ph.HEhep-th

classification hep-phastro-ph.HEhep-th
keywords astrophysicsaxion-likehigh-energyparticlesalpsappendicesastrophysicalconcerned
verification ladder T0 review T1 audit T2 compute T3 formal
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We offer a pedagogical introduction to axion-like particles (ALPs) as far as their relevance for high-energy astrophysics is concerned, from a few MeV to 1000 TeV. This review is self-contained, in such a way to be understandable even to non-specialists. Among other things, we discuss two strong hints at a specific ALP that emerge from two very different astrophysical situations. More technical matters are contained in three Appendices.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Exploring Constraints on Axion-like Particles with the Observations for blazar Mrk 501

    astro-ph.HE 2025-01 conditional novelty 6.0 of 10

    The ALP parameter constraints derived from Mrk 501 gamma-ray spectra vary by orders of magnitude depending on whether the jet emission is leptonic or hadronic and on the jet magnetic field geometry.

  2. Axions and Axion-like particles: collider searches

    hep-ph 2025-08 accept

    A pedagogical review of the ALP effective field theory, production and decay at colliders, indirect search strategies, and a summary of current bounds on the ALP-photon coupling.

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