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

Session

Wednesday - Session 4

Mar 20, 2024, 3:50 PM

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

50. Production of Feebly Interacting Particles at Finite Temperature

Mathias Becker (JGU Mainz)

3/20/24, 3:50 PM

3. Production and transport theory of Quarkonia and Dark Matter inside a plasma

Models of feebly-interacting Dark Matter (DM) have gained popularity due to the non-observation of DM in direct detection experiments. Unlike DM freeze-out, which occurs when the dark sector particles are non-relativistic, feebly-interacting DM is primarily produced at temperatures corresponding to the heaviest mass scale involved in the production process. Consequently, incorporating finite...

55. Thermal effects in freeze-in DM production

Jacopo Ghiglieri (SUBATECH, Nantes)

3/20/24, 4:15 PM

3. Production and transport theory of Quarkonia and Dark Matter inside a plasma

In this talk I will consider a DM model with a new sector comprising of a Dark Matter fermion and a colored, heavier scalar, Yukawa-coupled to a Standard Model quark. In this model the DM fermion is produced both from freeze in and from the later decays of the frozen-out scalars. I will discuss how thermal effects such as the emergence of collectivity, of screening and of multiple...

31. Dark matter annihilation with full collision terms

Luca Wiggering (University of Münster)

3/20/24, 4:40 PM

3. Production and transport theory of Quarkonia and Dark Matter inside a plasma

The standard approach of calculating the relic density of thermally produced dark matter based on the assumption of kinetic equilibrium is known to fail for forbidden dark matter models since only the high momentum tail of the dark matter phase space distribution function contributes significantly to dark matter annihilations, resulting in early kinetic decoupling of dark matter. Furthermore,...

110. Minimal decaying dark matter: from cosmological tensions to neutrino signatures

Lea Fuß (Technical University Munich)

3/20/24, 5:00 PM

The invisible decay of cold dark matter into a slightly lighter dark sector particle on cosmological time-scales has been proposed as a solution to the $S_8$ tension. In this talk, I want to present a possible embedding of this scenario within a particle physics framework and discuss its phenomenology. The model is set up of a minimal dark matter decay, where the dark sector contains two...

102. The GUT way for composite dark matter

Sonali Verma

3/20/24, 5:20 PM