报告题目：The XENON1T dark matter search experiment

报 告 人：Fei Gao (高飞)，Columbia University (哥伦比亚大学)

报告时间：2017-09-26 10:30

报告地点：物理系理科楼B315

报告摘要：Understanding the properties of dark matter particle is a fundamental problem in particle physics and cosmology. The search of dark matter particle scattering off nuclei target using ultra-low background detector is one of the most promising technology to decipher the nature of dark matter. The XENON1T experiment, which is a dual phase detector with 2.0 tons of xenon running at the Gran Sasso Laboratory in Italy, is designed to lead the field of dark matter direct detection. Since November 2016, the XENON1T detector is continuously taking data, with a background rate of more than one order of magnitude lower than any current generation dark matter search experiment. In this talk, results from the dark matter search data accumulated between Dec 2016 and Jan 2017 will be presented, which provides the world’s leading sensitivity in the field. Further more, ~150 days of dark matter search data accumulated in 2017 are being analyzed. The design and operation of the XENON1T detector as well as data analysis will also be covered.