Status and Sensitivity Projections for the XENON100 Dark Matter Experiment
Status and Sensitivity Projections for the XENON100 Dark Matter Experiment
复制标题
XENON100 暗物质实验的状态和灵敏度预测
DOI：
10.22323/1.064.0018
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
F. C. Collaboration
中科院分区：
文献类型：
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作者：
E. Aprile;L. Baudis;F. C. Collaboration
XENON实验计划旨在通过在两相时间投影室（TPC）中与氙核的弹性碰撞来探测冷暗物质粒子。我们目前正在测试一种100 kg规模的新TPC，XENON 100。这一新型超低本底探测器共有170公斤氙（目标区65公斤，主动屏蔽区105公斤）。它已安装在Gran Sasso地下实验室，目前处于调试阶段。我们回顾了探测器及其相关系统的设计和性能，现状，初步校准结果，背景预测和投影灵敏度。在6000千克-天的无背景曝光下，XENON 100将在2009年底达到2× 10−45 cm 2的自旋独立WIMP-核子截面的灵敏度。我们还讨论了我们的计划，升级的XENON 100实验，以提高灵敏度的另一个数量级，到2012年。
The XENON experimental program aims to detect cold dark matter particles via their elastic collisions with xenon nuclei in two-phase time projection chambers (TPCs). We are currently testing a new TPC at the 100 kg scale, XENON100. This new, ultra-low background detector, has a total of 170 kg of xenon (65 kg in the target region and 105 kg in the active shield). It has been installed at the Gran Sasso Underground Laboratory and is currently in commissioning phase. We review the design and performance of the detector and its associated systems, present status, preliminary calibration results, background prediction and projected sensitivity. With a 6000 kg-day background-free exposure, XENON100 will reach a sensitivity to spin-indepedent WIMP-nucleon cross section of 2× 10−45 cm2 by the end of 2009. We also discuss our plan to upgrade the XENON100 experiment to improve the sensitivity by another order of magnitude by 2012.