Search for Light Dark Matter in XENON10 Data
Search for Light Dark Matter in XENON10 Data
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DOI：
10.1103/physrevlett.107.051301
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发表时间：
2011-07-27
影响因子：
8.6
通讯作者：
Yamashita, M.
中科院分区：
文献类型：
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作者：
Angle, J.;Aprile, E.;Yamashita, M.
我们报告了用XENON10探测器搜索轻(小于或类似于10GeV)粒子暗物质的结果。事件触发对单个电子敏感，5个电子的分析阈值对应于1.4keV的核反冲能量。考虑到与自旋无关的暗物质-核子散射，我们排除了当暗物质粒子质量m(Chi)=7GeV时的截面σ(N)和gt；7×10(-42)cm(2)。我们发现，我们的数据强烈地约束了最近弹性暗物质对COCENT和CRESST-II观测到的超额低能事件的解释，以及DAMA的年度调制信号。
We report results of a search for light (less than or similar to 10 GeV) particle dark matter with the XENON10 detector. The event trigger was sensitive to a single electron, with the analysis threshold of 5 electrons corresponding to 1.4 keV nuclear recoil energy. Considering spin-independent dark matter-nucleon scattering, we exclude cross sections sigma(n) > 7 x 10(-42) cm(2), for a dark matter particle mass m(chi) = 7 GeV. We find that our data strongly constrain recent elastic dark matter interpretations of excess low-energy events observed by CoGeNT and CRESST-II, as well as the DAMA annual modulation signal.