用DM-TPC探测器对暗物质进行定向探测
Toward directional detection of Dark Matter with the DM-TPC detector
摘要：
定向探测可以提供明确的观测暗物质的相互作用，即使在存在阴险的背景。DM-TPC合作正在开发一种探测器，其目标是测量暗物质相互作用中产生的核反冲的方向和意义。该探测器由一个时间投影室组成，该时间投影室具有填充有低压CF $_4$气体的光学读数。WIMP与气体分子碰撞产生1-2 mm的核反冲，通过测量反冲过程中的能量损失，可以确定反冲的方向和方向。在低能中子束中运行的原型探测器的结果清楚地表明了这种方法测量方向性的适用性。一个立方米的原型，这是现在正在设计中，将使我们能够设置有竞争力的限制自旋依赖的暗物质相互作用使用定向探测器。
英文摘要：
Directional detection can provide unambiguous observation of Dark Matter interactions even in presence of insidious backgrounds. The DM-TPC collaboration is developing a detector with the goal of measuring the direction and sense of nuclear recoils produced in Dark Matter interactions. The detector consists of a Time Projection Chamber with optical readout filled with CF$_4$ gas at low pressure. A collision between a WIMP and a gas molecule results in a nuclear recoil of 1-2 mm. The measurement of the energy loss along the recoil allows us to determine the sense and the direction of the recoil. Results from a prototype detector operated in a low-energy neutron beam clearly demonstrate the suitability of this approach to measure directionality. A cubic meter prototype, which is now being designed, will allow us to set competitive limits on spin-dependent Dark Matter interactions using a directional detector.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
