2HDM singlet portal to dark matter
ME Cabrera, JA Casas, A Delgado, S Robles
Journal of High Energy Physics | SPRINGER | Published : 2021
Abstract 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 paper we 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 c..View full abstract
Awarded by Spanish Agencia Estatal de Investigacion through the grant "IFT Centro de Excelencia Severo Ochoa"
Awarded by MINECO project
Awarded by MICINN project
Awarded by National Science Foundation
The work of JAC has been partially supported by Spanish Agencia Estatal de Investigacion through the grant "IFT Centro de Excelencia Severo Ochoa SEV-2016-0597", and by MINECO project FPA 2016-78022-P and MICINN project PID2019-110058GB-C22. The work of AD was partially supported by the National Science Foundation under grant PHY-1820860. SR was supported by the Australian Research Council.