Dark matter results from 100 live days of XENON100 data.
Dark matter results from 100 live days of XENON100 data.
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DOI：
10.1103/physrevlett.107.131302
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发表时间：
2011-04
影响因子：
8.6
通讯作者：
E. Aprile;K. Arisaka;F. Arneodo;A. Askin;L. Baudis;A. Behrens;K. Bokeloh;E. Brown;T. Bruch
中科院分区：
文献类型：
--
作者：
E. Aprile;K. Arisaka;F. Arneodo;A. Askin;L. Baudis;A. Behrens;K. Bokeloh;E. Brown;T. Bruch
我们通过Xenon100检测器进行直接搜索，该探测器安装在意大利INFN的Laboratori Nazionali Del Gran Sasso在三个维度中，精度只能选择最内向的48公斤作为超值背景目标。在2010年1月至6月之间获得的数据，在信号区域没有发现三个候选事件的证据。 ，不包括自旋无依赖性弹性弹性弱相互作用的大粒子（WIMP）核散射横截面，高于7.0×10（-45）cm（-45）cm（2），对于50 GEV/C（2）以90％的置信度。
We present results from the direct search for dark matter with the XENON100 detector, installed underground at the Laboratori Nazionali del Gran Sasso of INFN, Italy. XENON100 is a two-phase time-projection chamber with a 62 kg liquid xenon target. Interaction vertex reconstruction in three dimensions with millimeter precision allows the selection of only the innermost 48 kg as the ultralow background fiducial target. In 100.9 live days of data, acquired between January and June 2010, no evidence for dark matter is found. Three candidate events were observed in the signal region with an expected background of (1.8 ± 0.6) events. This leads to the most stringent limit on dark matter interactions today, excluding spin-independent elastic weakly interacting massive particle (WIMP) nucleon scattering cross sections above 7.0 × 10(-45) cm(2) for a WIMP mass of 50 GeV/c(2) at 90% confidence level.