ITP OpenIR  > 理论物理所2012年知识产出
Spin 3/2 particle as a dark matter candidate: an effective field theory approach
Ding, R; Liao, Y; Ding, R (reprint author), Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China.
2012
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
ISSN1126-6708
期号4页码:54
摘要There is no indication so far on the spin of dark matter particles. We consider the possibility in this work that a spin-3/2 particle acts as dark matter. Employing the approach of effective field theory, we list all possible 4-fermion effective interactions between a pair of such fields and a pair of ordinary fermion fields. We investigate the implications of the proposal on the relic density, the antiproton to proton flux ratio in cosmic rays, and the elastic scattering off nuclei in direct detection. While the relic density and flux ratio are sensitive to all interactions albeit at different levels, the direct detection is only sensitive to a few of them. Using the observed data and experimental bounds, we set constraints on the relation of couplings and dark particle mass. In particular, we find that some mass ranges can already be excluded by jointly applying the observed relic density on the one side and the measured antiproton to proton flux ratio or the upper bounds from direct detection on the other.
部门归属[Ding, Ran; Liao, Yi] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China; [Liao, Yi] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China; [Liao, Yi] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
关键词Massive Particles Cross-sections Cosmic-rays Propagation Nucleons Galaxy
学科领域Physics
资助者Fundamental Research Funds for the Central Universities [65030021]; [NSFC-11025525] ; Fundamental Research Funds for the Central Universities [65030021]; [NSFC-11025525] ; Fundamental Research Funds for the Central Universities [65030021]; [NSFC-11025525] ; Fundamental Research Funds for the Central Universities [65030021]; [NSFC-11025525]
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收录类别SCI
语种英语
资助者Fundamental Research Funds for the Central Universities [65030021]; [NSFC-11025525] ; Fundamental Research Funds for the Central Universities [65030021]; [NSFC-11025525] ; Fundamental Research Funds for the Central Universities [65030021]; [NSFC-11025525] ; Fundamental Research Funds for the Central Universities [65030021]; [NSFC-11025525]
WOS记录号WOS:000304146600054
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15124
专题理论物理所2012年知识产出
通讯作者Ding, R (reprint author), Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China.
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Ding, R,Liao, Y,Ding, R . Spin 3/2 particle as a dark matter candidate: an effective field theory approach[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(4):54.
APA Ding, R,Liao, Y,&Ding, R .(2012).Spin 3/2 particle as a dark matter candidate: an effective field theory approach.JOURNAL OF HIGH ENERGY PHYSICS(4),54.
MLA Ding, R,et al."Spin 3/2 particle as a dark matter candidate: an effective field theory approach".JOURNAL OF HIGH ENERGY PHYSICS .4(2012):54.
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