报告题目：GAPS: Searching for Dark Matter with Cosmic-ray Antinuclei  

　　报告人：肖梦蛟(上海交通大学/MIT)  

　　报告人简介：肖梦蛟，2010年本科毕业于上海交通大学，2016年获得上海交通大学物理学博士学位，主要研究方向为暗物质和中微子探测。博士研究生毕业于PandaX暗物质实验，为PandaX一期实验的现场协调人。2016—2018年，美国马里兰大学博后，参与JUNO实验，为刻度系统Level 3负责人。2018年至今，MIT博后，参与美国GAPS暗物质间接探测实验，主要负责大面积Si(Li)探测器的研发和测试。 欢迎大家参加！ 

　　报告摘要：The General Antiparticle Spectrometer (GAPS) is a balloon-borne experiment designed to identify cosmic anti-nuclei, in particular antideuterons from dark matter annihilation or decay, using the uniquely characterized atomic X-rays and charged particles from the decay of exotic atoms. With such a novel detection approach, benefitting from a custom-developed large-area silicon tracker and a large-acceptance time-of-flight system, GAPS is sensitive to antideuterons with kinetic energy <0.25 GeV/nucleon, which should offer an essentially background-free region to probe various dark matter models. Additionally, one long duration balloon flight allows GAPS to collect a high-statistics antiproton spectrum in an unexplored energy range. The first flight of GAPS is scheduled for 2021 from Antarctica. This talk will present the science impact of the GAPS experiment, while focusing on the detection principle, conceptual design, details of construction status and the path forward to the initial flight.  

　　报告时间：2019年12月13日（星期五）14：00-15：00  

　　报告地点：紫台仙林校区3-201会议室  

欢迎大家参加！ 

紫金山天文台学术委员会