ITP OpenIR  > 理论物理所科研产出  > SCI论文
Ding, R; Liao, Y; Ding, R (reprint author), Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China.
Spin 3/2 particle as a dark matter candidate: an effective field theory approach
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordMassive Particles Cross-sections Cosmic-rays Propagation Nucleons Galaxy
AbstractThere 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.
2012
ISSN1126-6708
Issue4Pages:54
Subject AreaPhysics
Indexed BySCI
Funding OrganizationFundamental 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]
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15124
Collection理论物理所科研产出_SCI论文
Corresponding AuthorDing, R (reprint author), Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China.
Recommended Citation
GB/T 7714
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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