Spin 3/2 particle as a dark matter candidate: an effective field theory approach
文献类型：期刊论文
| 作者 | Ding, R ; Liao, Y |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2012 |
| 期号 | 4页码:54 |
| 关键词 | MASSIVE PARTICLES CROSS-SECTIONS COSMIC-RAYS PROPAGATION NUCLEONS GALAXY |
| ISSN号 | 1126-6708 |
| 通讯作者 | Ding, R (reprint author), Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China. |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | Fundamental Research Funds for the Central Universities [65030021]; [NSFC-11025525] |
| 原文出处 | http://dx.doi.org/10.1007/JHEP04(2012)054 |
| 语种 | 英语 |
| WOS记录号 | WOS:000304146600054 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15124]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Ding, R,Liao, Y. 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.(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. |
入库方式： OAI收割
来源：理论物理研究所
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