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Light mediators in dark matter direct detections
Li, T; Miao, S; Zhou, YF; Li, T (reprint author), State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2015
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
期号3页码:32
文章类型Article
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.
关键词Dark Matter Theory Dark Matter Experiments
学科领域Astronomy & Astrophysics ; Physics
资助者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] ; 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]
DOIhttp://dx.doi.org/10.1088/1475-7516/2015/03/032
关键词[WOS]DIPOLE-MOMENT ; CONSTRAINTS ; DAMA/LIBRA
收录类别SCI
语种英语
资助者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] ; 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]
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21073
专题理论物理所SCI论文
通讯作者Li, T (reprint author), State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式
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.
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