Light mediators in dark matter direct detections
文献类型：期刊论文
| 作者 | Li, T; Miao, S; Zhou, YF
|
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2015 |
| 期号 | 3页码:32 |
| 关键词 | dark matter theory dark matter experiments |
| 通讯作者 | Li, T (reprint author), State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| 英文摘要 | In an extended effective operator framework, we investigate in detail the effects of light mediators on the event spectra of dark matter (DM)-nucleus scatterings. The presence of light mediators changes the interpretation of the current experimental data, especially the determination of DM particle mass. We show by analytic and numerical illustrations that in general for all the operators relevant to spin-independent scatterings, the DM particle mass allowed by a given set of experimental data increases significantly when the mediator particle becomes lighter. For instance, in the case of CDMS-II-Si experiment, the allowed DM particle mass can reach similar to 50 (100) GeV at 68% (90%) confidence level, which is much larger than similar to 10 GeV in the case with contact interactions. The increase of DM particle mass saturates when the mediator mass is below O(10) MeV. The upper limits from other experiments such as SuperCDMS, CDMSlite, CDEX, XENON10/100, LUX, PandaX etc. all tend to be weaker toward high DM mass regions. In a combined analysis, we show that the presence of light mediators can partially relax the tension in the current results of CDMS-II-Si, SuperCDMS and LUX. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 关键词[WOS] | DIPOLE-MOMENT ; CONSTRAINTS ; DAMA/LIBRA |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21073]  |
| 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 | Li, T,Miao, S,Zhou, YF. Light mediators in dark matter direct detections[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2015(3):32. |
| APA | Li, T,Miao, S,&Zhou, YF.(2015).Light mediators in dark matter direct detections.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(3),32. |
| MLA | Li, T,et al."Light mediators in dark matter direct detections".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .3(2015):32. |
入库方式： OAI收割
来源：理论物理研究所
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