Speaker:
Chih-Liang Wu
Institution:
MIT
Date:
Wednesday, November 20, 2019
Time:
11:00 am
Location:
NS2 1201
Abstract:
The standard channel of dark matter (DM) signal is through two body annihilation or decay. I will consider the general case of more than two particles participating the annihilation. Such process can be enhanced at low velocity and leads to different redshift-dependence of signals from the standard channel. The benchmark DM model has a large self-interaction cross section which could give rise to a number of striking observable effects, including modifications to the DM density on sub-galactic scales. I will show the interesting evolution of density profiles of satellite halos.
The standard channel of dark matter (DM) signal is through two body annihilation or decay. I will consider the general case of more than two particles participating the annihilation. Such process can be enhanced at low velocity and leads to different redshift-dependence of signals from the standard channel. The benchmark DM model has a large self-interaction cross section which could give rise to a number of striking observable effects, including modifications to the DM density on sub-galactic scales. I will show the interesting evolution of density profiles of satellite halos.
Host:
Julian Heeck