题   目：Geometric effects on stellar limits on light particles

报告人：张永超              

时   间：2022年10月31日（星期一）14:30

地   点：腾讯会议：615-618-761

邀请人：边立功                

报告人介绍：

Dr. Yongchao Zhang, Professor at Southeast University, got his Ph.D. from Peking University in 2014. He was once a visiting scholar at University of Maryland and Institute of Theoretical Physics, Chinese Academy of Sciences, and a postdoctor at Université Libre de Bruxelles and Washington University in St. Louis. He is mainly interested in beyond standard model phenomenology and relevant astrophysics and cosmology, such as neutrino physics, axion physics, and the interplay of particle physics and astrophysics.

报告摘要：

In the era of multi-messenger astrophysics, the observations of supernovae, neutron stars, the Sun and other stars can be used to constrain the couplings of some light beyond-standard-model particles, e.g. axion (or axion-like particles), light scalar or dark particles. For the stellar limits on light particles, the geometric effects are found to be important.