Dark matter protected by the CP symmetry and its evolution in the early Universe

Dark matter (DM) candidates appear in a number of models that extend the scalar sector of the Standard Model. Commonly, the stability of DM in such models is guaranteed by a symmetry of the Lagrangian. In this talk I consider a model which allows one to stabilise DM with the CP symmetry of a more general form. Furthermore, this model introduces by construction an interesting interaction patter in the dark sector. I discuss, how this novel feature affects the thermal evolution of DM in the early Universe and the perspectives of indirect detection.

                                                                                          You are welcome,

                                             M. Kowal, W. Piechocki, J. Skalski, L. Szymanowski