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Gamma Ray Signals from Cosmic Ray Scattering on Axion-Like Particles

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arxiv 2012.07930 v1 pith:WKQH4DSK submitted 2020-12-14 hep-ph

James B. Dent , Bhaskar Dutta , Jayden L. Newstead , Alejandro Rodriguez , Ian M. Shoemaker , Zahra Tabrizi , Natalia Tapia Arellano This is my paper · ORCID
classification hep-ph
keywords boundsconstraintsalpsaxion-likecosmicparticlesscatteringsignals
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Dark Matter (DM) may be comprised of axion-like particles (ALPs) with couplings to photons and the standard model fermions. In this paper we study photon signals arising from cosmic ray (CR) electron scattering on background ALPs. For a range of masses we find that these bounds can place competitive new constraints on the ALP-electron coupling, although in many models lifetime constraints may supersede these bounds. In addition to current Fermi constraints, we also consider future e-Astrogram bounds which will have greater sensitivity to ALP-CR induced gamma-rays.

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Cited by 3 Pith papers

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

  1. Constraints on Axion-Like Particles with the Silicon Detector at a Nuclear Reactor

    hep-ph 2026-01 conditional novelty 6.0 of 10

    New 90% C.L. limits on the ALP–photon coupling in the 0.1–100 keV range are derived from Connie and Atucha-II reactor data via plasmon excitation in silicon; a 30 kg·yr Oscura-style run could improve on NEON by about tenfold.

  2. Dark Secrets of Baryons: Illuminating Dark Matter-Baryon Interactions with JWST

    hep-ph 2025-11 conditional novelty 5.0 of 10

    JWST ultraviolet luminosity function data currently provide the strongest upper limits on velocity-dependent (∝v^{-2}) dark matter–proton scattering for sub-GeV dark matter.

  3. Probing axion-like particles through the gamma-ray production from cosmic-ray scattering in the Milky Way dark matter halo

    astro-ph.HE 2025-01 conditional novelty 4.0 of 10

    A sensitivity forecast shows H.E.S.S.-like, CTAO, and SWGO observations could strengthen ALP-photon coupling limits by about an order of magnitude over gamma-ray satellites and probe axion-electron couplings at lower masses.

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