Title: The Roles of Bound States in the Dark Sector

Speaker: Professor Xiaoyong Chu （International Center for Theoretical Physics, University of the Chinese Academy of Sciences）

Time: 14:00pm, December 27, 2024

Location: 3-402, PMO Xianlin Campus

Abstract: Strongly interacting dark particles have been studied as dark matter candidates, when they regulate their relic abundance through N-to-2 annihilation, and address astrophysical small-scale puzzles. A reasonable consequence of relatively strong dark interaction is the formation of bound states, if the interaction is attractive. I will discuss the potential roles of bound state in the dark sector, focusing on how it can significantly modify dark matter freeze-out processes.