Maximally self-interacting dark matter: A composite asymmetric dark matter scenario

by Dr Takumi Kuwahara (IBS)

Wednesday 23 Sep 2020, 10:00 → 11:00 Asia/Shanghai

CHEP

We study self-interacting dark matter (SIDM) scenarios, where the s-wave self-scattering cross section almost saturates the Unitarity bound. Such self-scattering cross sections are featured by strong velocity dependence in a wide range of velocities. They may be indicated by observations of dark matter halos in a wide range of masses, from Milky Way's dwarf spheroidal galaxies to galaxy clusters. We pin down the model parameters that saturate the Unitarity bound in a composite asymmetric dark matter scenario. We discuss implications and predictions of such model parameters for dark-matter direct-detection experiments and particle phenomenology like the beam-dump experiments. If we have a time, I may also comment on another motivative SIDM model, a gauged Lμ - Lτ model, and its implications. This talk is based on 2007.15522.

ZOOM Metting ID: 1325969958

Join from PC, Mac, Linux, iOS or Android: https://huawan.zoomus.cn/j/1325969958
or you can join the meeting with Chrome, link: https://www.zoomus.cn/wc/1325969958/join