Self-interacting hidden sector dark matter, small scale galaxy structure anomalies, and a dark force
نویسندگان
چکیده
The short distance behavior of dark matter (DM) at galaxy scales exhibits several features not explained by the typical cold with velocity-independent cross section. We discuss a particle physics model hidden sector interacting feebly visible where fermion self-interacts via force light photon as mediator. study coupled Boltzmann equations involving two temperatures, one for each sector. fit velocity-dependent DM section to data from dwarf galaxies clusters consistent relic density constraint.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.103.075014