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讲准字379号:Search for Dark Matter Signals from the Galactic Center

发布时间:2019-11-18|浏览次数:

讲座报告主题:Search for Dark Matter Signals from the Galactic Center
专家姓名:杨莉莉  
日期:2019-11-25 时间:10:00
地点:实践楼301会议室  
主办单位:理学院  

主讲简介:杨莉莉,中山大学物理与天文学院副教授,南非约翰内斯堡大学客座教授。本科毕业于南开大学物理系,2013年在美国亚利桑那州立大学获得物理学博士学位。之后分别在美国亚利桑那州立大学做助理研究员,约翰内斯堡大学访问学者以及斯洛文尼亚新戈里查大学做博士后。2017年3月开始在斯洛文尼亚新戈里查大学做助理教授。2017年11月开始在南非约翰内斯堡大学做客座教授,2018年9月至今在中山大学物理与天文学院做副教授。主持了斯洛文尼亚个人基金一项并在Science,PRL,PRD,JCAP 等一流杂志发表了40余篇文章。研究专长:凝聚态物理。

主讲内容:The Cherenkov Telescope Array (CTA) is the next generation Imaging Air Cherenkov Telescope for the next decade and beyond. With excellent energy and angular resolutions, it will probe the gamma-ray sky in the 20 GeV to 500 TeV energy range, getting up to an order of magnitude improvement in sensitivity as compared to currently operating instruments, as VERITAS, H.E.S.S. and MAGIC. CTA will address a wide range of fundamental questions in and beyond astrophysics, with covering the major aspects of cosmic particle acceleration, exploring the extreme universe and probing frontiers in physics. Especially for dark matter searches, CTA is expected to probe heavier dark matter with unprecedented sensitivity, reaching the thermal annihilation cross-section at TeV regime. The talk will first introduce and report the recent status of the project, summarize the planned dark matter search strategies with CTA, focusing on the signal from the Galactic center, and update the current collaboration effort to study the impact of diffuse astrophysical backgrounds and systematic uncertainties on the searches.


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