期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 12, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP12(2020)202
关键词
Beyond Standard Model; Cosmology of Theories beyond the SM
资金
- IBS [IBS-R018-D1]
We study self-interacting dark matter (SIDM) scenarios, where the s-wave self-scattering cross section almost saturates the Unitarity bound. Such self-scattering cross sections are singly parameterized by the dark matter mass, and are featured by strong velocity dependence in a wide range of velocities. They may be indicated by observations of dark matter halos in a wide range of masses, from Milky Way's dwarf spheroidal galaxies to galaxy clusters. We pin down the model parameters that saturates the Unitarity bound in well-motivated SIDM models: the gauged L-mu- L-tau model and composite asymmetric dark matter model. We discuss implications and predictions of such model parameters for cosmology like the H-0 tension and dark-matter direct-detection experiments, and particle phenomenology like the beam-dump experiments.
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