http://arxiv.org/abs/1903.10632
We consider models of light dark matter coupled to quarks through a vector current interaction. For low energies, these models must be treated through the effective couplings to mesons, which are implemented here through the chiral Lagrangian. We find the rates of dark matter annihilation and decay to the light mesons, and find the expected photon spectrum from the decay of the hadrons. We compare to current and future observations, and show that there is a significant discovery reach for these models.
D. Berger, A. Rajaraman and J. Kumar
Wed, 27 Mar 19
14/74
Comments: 14 pages
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