The THDMa and possible $e^{+}{e}^{-}$ signatures

Abstract

I here discuss the THDMa, a type II two Higgs doublet model that is enhanced by an additional pseudoscalar which serves as a portal to the dark matter sector containing a fermionic dark matter andidate. I present a recent scan of the models parameter space where all parameters are allowed to float freely, and discuss prospects for this model at future $e^{+}{e}^{-}$ colliders for cases that are not covered in standard THDM searches.

6 pages, 3 figures; Talk presented at the 30th International Symposium on Lepton Photon Interactions at High Energies, hosted by the University of Manchester, 10-14 January 2022