Tasting Flavoured Dark Matter - A Study of Simplified Flavoured Dark Matter Models

In this thesis we study three simplified flavoured dark matter models with $t$-channel mediated interactions between the dark sector and the Standard Model. In the first model a Majorana fermionic dark matter triplet is coupled to right-handed up-type quarks of the Standard Model, allowing this model to connect the dark matter problem with large effects in CP violating charm decays. In the second model the dark particles are assumed to be complex scalars which couple to right-handed charged leptons of the Standard Model, yielding a rich phenomenology that allows for large couplings of dark matter to leptons. Finally, an extended version of the lepton-flavoured dark matter model with additional couplings of the dark species to left-handed leptons is studied. The additional coupling of the two fields that mediate the interactions of dark matter with left- and right-handed leptons to the Higgs doublet allows this model to constitute a joint solution for the DM problem and the muon $(g-2)$ anomaly.