2nd Edition of the Workshop 'Quarkonia meet Dark Matter' (QMDM)

Center-of-mass recoil effects for thermal dark matter pairs in the early universe

Not scheduled

20m

Auditorium (Institute for Advanced Study, Technical University of Munich)

1. Perturbative regime: Effective field theories and precision calculations for Quarkonia and Dark Matter Monday - Session 4

Speaker

Gramos Qerimi (TUM)

Description

For a quantitative investigation on the time evolution of heavy thermal dark matter at and after thermal freeze-out, near-threshold processes need to be taken into account which have a large impact on the observed dark matter relic abundance. We study the recoil effect of heavy dark matter pairs in a thermal bath and compute the thermal rates of dark matter fermion-antifermion pairs in the laboratory frame within the framework of potential non-relativistic effective field
theories at finite temperature. For the considered hierarchy of energy scales, we highlight the effect of the recoil corrections to the thermal rates and relic density.