Knowledge Management System of Institute of Theoretical Physics, CAS
Li, T; Miao, S; Zhou, YF ; Li, T (reprint author), State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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| Light mediators in dark matter direct detections | |
| Source Publication | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
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| Language | 英语 |
| Keyword | Dark Matter Theory Dark Matter Experiments |
| Abstract | 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. |
| 2015 | |
| Issue | 3Pages:32 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| DOI | http://dx.doi.org/10.1088/1475-7516/2015/03/032 |
| Indexed By | SCI |
| Funding Organization | National Basic Research Program of China (973 Program) [2010CB833000] ; National Basic Research Program of China (973 Program) [2010CB833000] ; National Basic Research Program of China (973 Program) [2010CB833000] ; National Basic Research Program of China (973 Program) [2010CB833000] ; National Nature Science Foundation of China (NSFC) [10821504, 11335012, 11475237] ; National Nature Science Foundation of China (NSFC) [10821504, 11335012, 11475237] ; National Nature Science Foundation of China (NSFC) [10821504, 11335012, 11475237] ; National Nature Science Foundation of China (NSFC) [10821504, 11335012, 11475237] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/21073 |
| Collection | SCI期刊论文 |
| Corresponding Author | Li, T (reprint author), State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Li, T,Miao, S,Zhou, YF,et al. Light mediators in dark matter direct detections[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2015(3):32. |
| APA | Li, T,Miao, S,Zhou, YF,&Li, T .(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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Light mediators in d（765KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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