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Cosmic abundances of SIMP dark matter

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Title
Cosmic abundances of SIMP dark matter
Author(s)
Soo-Min Choi; Hyun Min Lee; Min-Seok Seo
Publication Date
2017-04
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v.2017, no.4, pp.154 -
Publisher
SPRINGER
Abstract
Thermal production of light dark matter with sub-GeV scale mass can be attributed to 3 → 2 self-annihilation processes. We consider the thermal average for annihilation cross sections of dark matter at 3 → 2 and general higher-order interactions. A correct thermal average for initial dark matter particles is important, in particular, for annihilation cross sections with overall velocity dependence and/or resonance poles. We apply our general results to benchmark models for SIMP dark matter and discuss the effects of the resonance pole in determining the relic density. © 2017, The Author(s)
URI
http://pr.ibs.re.kr/handle/8788114/3721
DOI
10.1007/JHEP04(2017)154
ISSN
1126-6708
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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