ITP OpenIR  > 理论物理所科研产出  > SCI论文
Li, T; Miao, S; Zhou, YF; Li, T (reprint author), State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Light mediators in dark matter direct detections
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Language英语
KeywordDark Matter Theory Dark Matter Experiments
AbstractIn 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
Issue3Pages:32
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1088/1475-7516/2015/03/032
Indexed BySCI
Funding OrganizationNational 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]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21073
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLi, 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.
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