Minding the MeV Gap: the Indirect Detection of Low Mass Dark Matter

Abstract

We consider the prospects for the indirect detection of low mass dark matter which couples dominantly to quarks. If the center of mass energy is below about 280 MeV, the kinematically allowed final states will be dominated by photons and neutral pions, producing striking signatures at gamma ray telescopes. In fact, an array of new instruments have been proposed, which would greatly improve sensitivity to photons in this energy range. We find that planned instruments can improve on current sensitivity to dark matter models of this type by up to a few orders of magnitude.

6 pages, 2 figures, 1 table, LaTeX. Submitted to the proceedings of CETUP*/PPC 2015

References in corpus (4)

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• Indirect Detection of Dark Matter Using MeV-Range Gamma-Ray Telescopes
• A Pair Production Telescope for Medium-Energy Gamma-Ray Polarimetry
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Cited by in corpus (7)

• The e-ASTROGAM mission (exploring the extreme Universe with gamma rays in the MeV-GeV range)
• micrOMEGAs 6.0: N-component dark matter
• Prospects for indirect MeV Dark Matter detection with Gamma Rays in light of Cosmic Microwave Background Constraints
• Indirect Detection of Sub-GeV Dark Matter Coupling to Quarks
• Detecting neutrino-boosted axion dark matter in the MeV gap
• On the Prospects for Detecting a Net Photon Circular Polarization Produced by Decaying Dark Matter
• Indirect Detection of Low-mass Dark Matter Through the ${\pi }^0$ and $\eta$ Windows