Back to Search
Start Over
Diffuse axion-like particle searches
- Publication Year :
- 2017
-
Abstract
- We propose a new method to search for axion-like particles (ALPs) based on the gamma-rays produced concomitant with high-energy astrophysical neutrinos. The existence of high-energy neutrinos implies production of gamma-rays in the same sources. Photons can convert into ALPs in the sources' magnetic fields, and will travel as ALPs through extragalactic space. Back-conversion in the Milky Way's magnetic field leads to a diffuse anisotropic high-energy photon flux that existing and upcoming gamma-ray detectors, like HAWC, CTA, and LHAASO can detect. This method probes unexplored ALP parameter space, with LHAASO being realistically sensitive to couplings above $10^{-11}\, \rm{GeV^{-1}}$ and masses up to $3\times 10^{-6} \, \rm{eV}$ in ten years. Our technique also explores viable ALP dark matter parameter space.<br />Comment: v1: 9 pages, 3 figures. Comments welcome
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1712.01839
- Document Type :
- Working Paper