PandaX实验介绍和进展
发布时间：2018-11-13 13:22
【摘要】：Panda X是一个利用惰性元素"氙"作为探测介质进行粒子及天体物理稀有事件探测的大型实验装置.Panda X的一期和二期实验主要利用"二相型氙"时间投影室技术来进行弱相互作用暗物质粒子的直接探测.其中一期实验使用了120 kg氙,目标是在低质量暗物质区域检验以往其他实验所发现的疑似信号.一期实验的结果不支持这些疑似信号,并对10 Ge V/c2以下质量的暗物质性质给出了严格的限制.二期实验升级后的探测器使用了500 kg的氙.二期实验目前正在进行调试和试运行,它将在2015年末正式开始数据采集.Panda X第三期实验将采用高压的富氙-136(90%富集度)气体探测器进行无中微子双贝塔衰变探测,以研究中微子的本质.三期实验正在进行概念设计和原型测试.
[Abstract]:Panda X is a large experimental device for detecting rare events in particle and astrophysics by using the inert element "xenon" as the detecting medium. The first and second phase experiments of. Panda X mainly use the "two-phase xenon" time projection chamber technology. For direct detection of weakly interacting dark matter particles. The first phase uses 120 kg xenon and aims to test suspected signals from other previous experiments in areas of low mass dark matter. The results of the first phase experiment do not support these suspected signals, and the properties of dark matter of the mass below 10 Ge V/c2 are strictly limited. The second phase upgraded detector uses 500 kg of xenon. The second phase of the experiment, which is currently being debugged and tested, will officially begin data acquisition. Panda X Phase III in late 2015. The high-pressure xenon-rich xenon-136 (90% enrichment) gas detector will be used for neutrino free double beta decay detection. To study the nature of neutrinos. Conceptual design and prototype testing are under way in the third phase of the experiment.
【作者单位】： 上海交通大学物理与天文系粒子物理与核物理研究所;
【分类号】：P145.9
[Abstract]:Panda X is a large experimental device for detecting rare events in particle and astrophysics by using the inert element "xenon" as the detecting medium. The first and second phase experiments of. Panda X mainly use the "two-phase xenon" time projection chamber technology. For direct detection of weakly interacting dark matter particles. The first phase uses 120 kg xenon and aims to test suspected signals from other previous experiments in areas of low mass dark matter. The results of the first phase experiment do not support these suspected signals, and the properties of dark matter of the mass below 10 Ge V/c2 are strictly limited. The second phase upgraded detector uses 500 kg of xenon. The second phase of the experiment, which is currently being debugged and tested, will officially begin data acquisition. Panda X Phase III in late 2015. The high-pressure xenon-rich xenon-136 (90% enrichment) gas detector will be used for neutrino free double beta decay detection. To study the nature of neutrinos. Conceptual design and prototype testing are under way in the third phase of the experiment.
【作者单位】： 上海交通大学物理与天文系粒子物理与核物理研究所;
【分类号】：P145.9
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