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.

                                                                                          Serdecznie zapraszamy,

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