Light mediators in dark matter direct detections
Light mediators in dark matter direct detections
复制标题
暗物质直接检测中的光介体
DOI:
10.1088/1475-7516/2015/03/032
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发表时间:
2014-12
影响因子:
6.4
通讯作者:
Zhou Yu-Feng
中科院分区:
文献类型:
--
作者:
Li Tai;Miao Sen;Zhou Yu-Feng
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 ∼ 50 (100) GeV at 68% (90%) confidence level, which is much larger than 0∼ 1 GeV in the case with contact interactions. The increase of DM particle mass saturates when the mediator mass is below ?(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.
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DOI:
10.1088/0954-3899/37/10/105009
发表时间:
2010-10-01
影响因子:
3.5
作者:
Cassel, S.
通讯作者:
Cassel, S.
影响因子:
6.4
作者:
Hong-Bo Jin;Yue-Liang Wu;Yu-feng Zhou
通讯作者:
Hong-Bo Jin;Yue-Liang Wu;Yu-feng Zhou
DOI:
--
发表时间:
2010-07
期刊:
arXiv: High Energy Physics - Phenomenology
影响因子:
--
作者:
T. Banks;J. Fortin;S. Thomas
通讯作者:
T. Banks;J. Fortin;S. Thomas
影响因子:
5
作者:
J. Kumar;D. Sanford;L. Strigari
通讯作者:
J. Kumar;D. Sanford;L. Strigari
影响因子:
5
作者:
Moira I. Gresham;K. Zurek
通讯作者:
Moira I. Gresham;K. Zurek