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Drewes, M; Kang, JU
Sterile neutrino Dark Matter production from scalar decay in a thermal bath
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordBeyond Standard Model 3.5 KEV LINE Cosmology of Theories beyond the SM FINITE-TEMPERATURE Neutrino Physics FIELD-THEORY Thermal Field Theory X-RAY RESONANT LEPTOGENESIS BARYON ASYMMETRY GAUGE-THEORIES CUTTING RULES OSCILLATIONS MASSES
AbstractWe calculate the production rate of singlet fermions from the decay of neutral or charged scalar fields in a hot plasma. We find that there are considerable thermal corrections when the temperature of the plasma exceeds the mass of the decaying scalar. We give analytic expressions for the temperature-corrected production rates in the regime where the decay products are relativistic. We also study the regime of non-relativistic decay products numerically. Our results can be used to determine the abundance and momentum distribution of Dark Matter particles produced in scalar decays. The inclusion of thermal corrections helps to improve predictions for the free streaming of the Dark Matter particles, which is crucial to test the compatibility of a given model with cosmic structure formation. With some modifications, our results may be generalised to the production of other Dark Matter candidates in scalar decays.
2016
Issue5Pages:51
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1007/JHEP05(2016)051
Indexed BySCI
Funding OrganizationGottfried Wilhelm Leibniz program of the Deutsche Forschungsgemeinschaft (DFG) ; DFG cluster of excellence Origin and Structure of the Universe ; Jiangsu Ministry of Science and Technology [BK20131264] ; Natural Science Foundation of China [11405084] ; Projektbezogener Wissenschaftleraustausch program of the Bayerisches Hochschulzentrum fur China ; visitor program of the Kavli Institute for Theoretical Physics China (KITPC) in Beijing
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23332
Collection理论物理所科研产出_SCI论文
Affiliation1.Tech Univ Munich, Phys Dept T70, James Franck Str 1, D-85748 Garching, Germany
2.Kang, Jin U.] Nanjing Univ, Dept Phys, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China
3.Kang, Jin U.] Kim Il Sung Univ, Dept Phys, Taesong Dist, Pyongyang, North Korea
4.Kang, Jin U.] Abdus Salaam Int Ctr Theoret Phys, Str Costiera 11, I-34151 Trieste, Italy
5.Drewes, Marco; Kang, Jin U.] Chinese Acad Sci, Kavli Inst Theoret Phys China, Zhong Guan Cun East St 55,POB 2735, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Drewes, M,Kang, JU. Sterile neutrino Dark Matter production from scalar decay in a thermal bath[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016(5):51.
APA Drewes, M,&Kang, JU.(2016).Sterile neutrino Dark Matter production from scalar decay in a thermal bath.JOURNAL OF HIGH ENERGY PHYSICS(5),51.
MLA Drewes, M,et al."Sterile neutrino Dark Matter production from scalar decay in a thermal bath".JOURNAL OF HIGH ENERGY PHYSICS .5(2016):51.
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