Speaker
Rupert Coy
(ULB)
Description
Thermal dark matter (DM) covers a well-motivated class of candidates. In this talk, I will firstly consider DM in a hidden sector with temperature T', and find the allowed, model-independent parameter space in terms of the DM mass and the ratio T'/T. Then I will look specifically at the T'/T >> 1 case, taking dark QED as a representative example, and show how large entropy production allows the model to go beyond the generic domain.