18–22 Jul 2022
Europe/Zurich timezone

Bouncing Dark Matter

19 Jul 2022, 18:20
20m
EI10

EI10

Speaker

Bibhushan Shakya

Description

Thermal dark matter scenarios are characterized by an exponential decrease in the comoving dark matter number density as the temperature drops below the dark matter mass in the early Universe. In this talk, we will discuss a novel thermal framework, bouncing dark matter, where the abundance instead undergoes a ``bounce:" a transition from the exponential fall to an exponential rise, resulting in an enhancement of the final abundance by several orders of magnitude. We will discuss the general idea, multiple realizations, and phenomenological aspects of this mechanism.

Author

Bibhushan Shakya

Presentation materials