Sterile neutrino Dark Matter production from scalar decay in a thermal bath

doi:http://dx.doi.org/10.1007/JHEP05(2016)051

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	Sterile neutrino Dark Matter production from scalar decay in a thermal bath
	Drewes, M (reprint author), Tech Univ Munich, Phys Dept T70, James Franck Str 1, D-85748 Garching, Germany.; Kang, JU (reprint author), Chinese Acad Sci, Kavli Inst Theoret Phys China, Zhong Guan Cun East St 55,POB 2735, Beijing 100190, Peoples R China.; Drewes, M; Kang, JU (reprint author), Abdus Salaam Int Ctr Theoret Phys, Str Costiera 11, I-34151 Trieste, Italy.; Kang, JU (reprint author), Kim Il Sung Univ, Dept Phys, Taesong Dist, Pyongyang, North Korea.; Kang, JU; Kang, JU (reprint author), Nanjing Univ, Dept Phys, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China.
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2016
期号	5 页码:51
关键词	Beyond Standard Model CoSmology Of Theories Beyond The Sm Neutrino Physics Thermal Field Theory
DOI	http://dx.doi.org/10.1007/JHEP05(2016)051
英文摘要	We 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.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21654]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Drewes, M (reprint author), Tech Univ Munich, Phys Dept T70, James Franck Str 1, D-85748 Garching, Germany.; Kang, JU (reprint author), Chinese Acad Sci, Kavli Inst Theoret Phys China, Zhong Guan Cun East St 55,POB 2735, Beijing 100190, Peoples R China.; Drewes, M; Kang, JU (reprint author), Abdus Salaam Int Ctr Theoret Phys, Str Costiera 11, I-34151 Trieste, Italy.; Kang, JU (reprint author), Kim Il Sung Univ, Dept Phys, Taesong Dist, Pyongyang, North Korea.; Kang, JU (reprint author), Nanjing Univ, Dept Phys, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China.
推荐引用方式 GB/T 7714	Drewes, M ,Kang, JU ,Drewes, M,et al. 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 .,Drewes, M.,Kang, JU .,Kang, JU .,...&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.