SuperCDMS SNOLAB continued construction

暗物质的存在在很大程度上是毋庸置疑的，然而，即使在暗物质首次发现80年后，所有证据也只是基于大范围的引力效应。经过二十多年的不懈努力，对用来解释暗物质观测的弱相互作用大质量粒子(WIMP)的搜索灵敏度已经达到了与用最基本假设开发的模型的预测很大程度上重叠的水平。在对WIMP相互作用的直接搜索中缺乏信号，以及在大型强子对撞机上缺乏新粒子的证据，迫使我们考虑除了标准粒子物理模型的最简单的超对称扩展之外的模型。*超级低温暗物质搜索实验(SuperCDMS)通过改进低温半导体探测器的设计，将灵敏度扩展到质量低于0.5GeV/c2的粒子，大大低于传统的超对称WIMP搜索范围。使用不同的目标材料(锗和硅)也为测试暗物质粒子和原子核之间的非标准相互作用机制打开了大门。超级CDMS SNOLAB将在未来几年由美国能源部和NSF以及加拿大CFI提供资金。该提案要求加拿大SuperCDMS集团在建设SuperCDMS SNOLAB的关键时期内获得运营资金。加拿大小组成员对新的SNOLAB实验的数据采集、触发、实验基础设施和探测器测试负有关键责任。申请的资金将用于支持女王大学、不列颠哥伦比亚大学、多伦多大学和劳伦斯大学/SNOLAB的博士后研究员和研究生，小组成员前往不同的SuperCDMS测试设施进行DAQ工作和探测器测试的旅费，以及在建设阶段前往萨德伯里的旅费，以及合作会议、合作机构访问和会议旅费。

The existence of dark matter is largely undisputed, yet even 80 years after its first discovery all evidence is based on gravitational effects on large scales only. After more than two decades of dedicated effort, the sensitivity of searches for Weakly Interacting Massive Particles (WIMPs) proposed to explain the dark matter observations has reached a level that overlaps largely with the prediction of models developed with the most basic assumptions. The lack of a signal in direct searches for WIMP interactions as well as the lack of evidence for new particles at the LHC forces us to consider models other than the simplest SuperSymmetric extensions of the standard model of particle physics.******The Super Cryogenic Dark Matter Search experiment (SuperCDMS) embraces this demand by improving the design of the cryogenic semiconductor detectors to extending the sensitivity to particles with masses down to below half a GeV/c2, considerably below the traditional search range for Supersymmetric WIMPs. Using different target materials (germanium and silicon) also opens the door to testing no-standard interaction mechanisms between dark matter particle and atomic nuclei.******SuperCDMS SNOLAB will be constructed with capital funding from DOE and NSF in the US and CFI in Canada over the coming years. This proposal requests operating funds for the Canadian SuperCDMS groups over the critical period during which SuperCDMS SNOLAB will be constructed. Canadian group members have key responsibility for data acquisition, trigger, experiment infrastructure, and detector testing for the new SNOLAB experiment. The requested funds will support postdoctoral fellows and graduate students at Queen's, UBC, the University of Toronto and at Laurentian University/SNOLAB, travel costs for group members to the different SuperCDMS test facilities for DAQ work and detector testing and to Sudbury during the construction phase, as well as collaboration meetings, visits to collaborating institutions and conference travel.**