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Kamada, Ayuki
순수물리이론 연구단
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Maximally self-interacting dark matter: models and predictions

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Title
Maximally self-interacting dark matter: models and predictions
Author(s)
Ayuki Kamada; Hee Jung Kim; Takumi Kuwahara
Subject
VECTOR GAUGE BOSON, ; PHI-MESON DECAYS, ; EXCLUSION LIMITS, ; SEARCH, ; FORCES, ; MUON, ; LEPTOGENESIS, ; CONSTRAINTS, ; CLUSTERS, ; BARYON
Publication Date
2020-12-30
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v.2020, no.12, pp.1 - 43
Publisher
SPRINGER
Abstract
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.
URI
https://pr.ibs.re.kr/handle/8788114/9111
DOI
10.1007/JHEP12(2020)202
ISSN
1029-8479
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
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