Atomki anomaly and the Secluded Dark Sector

Abstract

The Atomiki anomaly can be interpreted as a new light vector boson. If such a new particle exists, it could be a mediator between the Standard Model sector and the dark sector including the dark matter. We discussed some simple effective models with these particles. In the models, the secluded dark matter models are good candidates to satisfy the thermal relic abundance. In particular, we found that the dark matter self-interaction can be large enough to solve the small scale structure puzzles if the dark matter is a fermion.

5 pages, 4 figures, etc.; contribution to the proceedings of Joint Conference of ICGAC-XIII and IK15, Seoul, 3-7 July 2017; based on 1609.01605

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• Neutrinos from captured dark matter annihilation in a galactic population of neutron stars
• Solar constraints on captured electrophilic dark matter
• Probing the Dark Matter Capture Rate in a Local Population of Brown Dwarfs with IceCube Gen 2
• Confronting the dark matter capture rate with a continuous gravitational wave probe of local neutron stars
• Can local White Dwarfs constrain Dark Matter interactions?