PoS - Proceedings of Science
Volume 337 - Neutrino Oscillation Workshop (NOW2018) - Session V: Particle Physics in the Cosmos
Diffuse axion-like particle searches
R. Laha
Full text: pdf
Published on: April 24, 2019
We discuss a new strategy to detect axion-like particles (ALPs) using the high-energy gamma-ray photons that are produced in or near sources of high-energy astrophysical neutrinos. These gamma-ray photons can convert to ALPs in the magnetic field of the source galaxy and can travel long distances. When these ALPs encounter the Milky Way magnetic field, they convert back to high-energy gamma-ray photons which can be detected by HAWC, CTA, and LHAASO. We show that this technique can ALP - photon coupling down to 10$^{-11}$ GeV$^{-1}$ and ALP masses up to 3 $\mu$eV in ten years of observation.
DOI: https://doi.org/10.22323/1.337.0091
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