| Speaker: | Johannes Herms (Kavli IPMU) |
|---|---|
| Title: | Light thermal relic dark matter enabled by a second Higgs |
| Date (JST): | Fri, May 09, 2025, 13:30 - 15:00 |
| Place: | Seminar Room A |
| Abstract: |
Thermal relic particles are a prime dark matter candidate. They have traditionally been searched for around the electroweak scale, but can be viable down to masses of a few MeV. This talk outlines the two challenges faced by the sub-GeV thermal relic scenario, and how overcoming them shapes the study of sub-GeV thermal relic models. Models of light thermal relic dark matter can be characterized by the new light mediator that they typically require to enable sufficient dark matter depletion in the early Universe. I present the possibility of a light mediator originating from a second Higgs doublet, and explore its signatures in DM production, neutrino masses, DM indirect detection as well as at the LHC. |
