Seminar

Title： Self-interacting dark matter: models and observations

Speaker： Prof.Xiaoyong Chu （储晓勇），IHEP, Austrian Academy of Sciences

Time：16:00  May. 17th (Mon.) 2021

Place：Rm 319, IHEP Library Building

Abstract: Cosmological simulations suggest that there exists an unexpected mass deficit in dark matter inner halos. This has inspired the study of self-scattering dark matter.  In this talk, I will first discuss various dark matter models that can address such mass deficit, and then introduce the so-called effective-range approach, which parametrizes the velocity dependence of the self-interaction in a nearly model-independent way. At last, I will address the current status and future prospects of this field.

Speaker: Dr. Xiaoyong Chu received his doctoral degree at Université libre de Bruxelles in 2013. After that he was a postdoctoral researcher at the Abdus Salam International Centre for Theoretical Physics, Trieste (2013-2016), and then at the Austrian Academy of Sciences (2016-2020). Now he works as a permanent research associate at the Institute of High-Energy Physics, Austrian Academy of Sciences.