Indirect Detection of Sub-GeV Dark Matter Coupling to Quarks
High Energy Physics - Phenomenology
2018-12-26 v2 Cosmology and Nongalactic Astrophysics
Abstract
We consider photon signals arising from the annihilation or decay of low-mass (sub-GeV) dark matter which couples dominantly to quarks. In this scenario, the branching fractions to the various kinematically accessible hadronic final states can largely be determined from chiral perturbation theory. Several of these final states yield striking spectral features in the sub-GeV photon spectrum. New experiments, such as e-ASTROGAM and AMEGO, are in development to improve sensitivity in this energy range, and we discuss their potential sensitivity to this class of models.
Keywords
Cite
@article{arxiv.1808.02579,
title = {Indirect Detection of Sub-GeV Dark Matter Coupling to Quarks},
author = {Jason Kumar},
journal= {arXiv preprint arXiv:1808.02579},
year = {2018}
}
Comments
12 pages, 3 figures, LaTeX. Minor errors fixed, results unchanged. Matches journal version