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题名: Sterile neutrino Dark Matter production from scalar decay in a thermal bath
作者: Drewes, M ;  Kang, JU
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2016
期号: 5, 页码:51
关键词: Beyond Standard Model ;  Cosmology of Theories beyond the SM ;  Neutrino Physics ;  Thermal Field Theory
学科分类: Physics
DOI: http://dx.doi.org/10.1007/JHEP05(2016)051
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), Nanjing Univ, Dept Phys, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China. ;  Kang, JU (reprint author), Kim Il Sung Univ, Dept Phys, Taesong Dist, Pyongyang, North Korea. ;  Kang, JU (reprint author), Abdus Salaam Int Ctr Theoret Phys, Str Costiera 11, I-34151 Trieste, Italy. ;  Drewes, M ;  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.
文章类型: Article
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.
类目[WOS]: Physics, Particles & Fields
关键词[WOS]: 3.5 KEV LINE ;  FINITE-TEMPERATURE ;  FIELD-THEORY ;  X-RAY ;  RESONANT LEPTOGENESIS ;  BARYON ASYMMETRY ;  GAUGE-THEORIES ;  CUTTING RULES ;  OSCILLATIONS ;  MASSES
收录类别: SCI
项目资助者: Gottfried 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
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21654
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
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.
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