Author:
Qiu Sujuan,Iminniyaz Hoernisa,Huo Wensheng
Abstract
Abstract
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.
Funder
Natural Science Foundation of Xinjiang Uygur Autonomous Region
National Natural Science Foundation of China