We show that solar $\gamma$-ray observations can provide a complementary probe of Dark Matter in scenarios where the interactions with the Standard Model proceed via long-lived mediators. For illustration we consider a simplified model which provides solar $\gamma$-ray fluxes observable with the next generation $\gamma$-ray telescopes, while complying with the existing experimental constraints. Our results suggest that solar $\gamma$-ray fluxes can be orders of magnitude larger than the ones from the Galactic center, while being subject to low backgrounds.
M. Lucente, C. Arina, M. Backovic, et. al.
Thu, 12 Oct 17
Comments: 4 pages, 2 figures. To appear in the proceedings of The European Physical Society Conference on High Energy Physics, 5-12 July 2017 in Venice, Italy