2HDM portal to Dark Matter

Higgs portal models are the most minimal way to explain the relic abundance of the Universe. They add just a singlet that only couples to the Higgs through a single parameter that controls both the dark matter relic abundance and the direct detection cross-section. Unfortunately this scenario, either with scalar or fermionic dark matter, is almost ruled out by the latter. In this talk I will analyze the Higgs-portal idea with fermionic dark matter in the context of a 2HDM. By disentangling the couplings responsible for the correct relic density from those that control the direct detection cross section we are able to open the parameter space and find wide regions consistent with both the observed relic density and all the current bounds.

Liga Zoom: https://cuaieed-unam.zoom.us/j/83101947064?pwd=NHd6M0RmM0RicVZhNXpQWTdQN3hkUT09

Meeting ID: 831 0194 7064

Passcode: 199277