Asymmetric dark matter and Sommerfeld enhancement

作     者：Sujuan Qiu Hoernisa Iminniyaz Wensheng Huo 

作者机构：School of Physics Science and Technology Xinjiang University 

出 版 物：《Communications in Theoretical Physics》 (理论物理)

年 卷 期：2024年第76卷第8期

页      面：120-125页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (U2031204, 11 765 021) Natural Science Foundation of Xinjiang Uygur Autonomous Region (2022D01C52) 

主　　题：asymmetric dark matter relic density Sommerfeld enhancement 

摘      要：We study the relic density of asymmetric dark matter with long-range interactions by considering the Sommerfeld effect. We find that the annihilation cross section of asymmetric dark matter is enhanced by the Sommerfeld effect and thus the relic density is decreased. Then we use the Planck data to constrain the asymmetry factor, coupling, and to derive the upper bounds on the dark matter mass in s-wave and p-wave annihilation cases.