22–25 Sept 2020
DESY Hamburg
Europe/Berlin timezone

Precise dark matter relic abundance in decoupled sectors

22 Sept 2020, 14:15
13m
DESY Hamburg

DESY Hamburg

Speaker

Mr Paul Frederik Depta (DESY)

Description

Dark matter (DM) as a thermal relic of the primordial plasma is increasingly pressured by direct and indirect searches, while the same production mechanism in a decoupled sector is much less constrained. We extend the standard treatment of the freeze-out process to such scenarios and perform precision calculations of the annihilation cross section required to match the observed DM abundance. We demonstrate that the difference to the canonical value is generally sizeable, and can reach orders of magnitude. Our results directly impact the interpretation of DM searches in hidden sector scenarios.

Primary author

Co-authors

Kai Schmidt-Hoberg (DESY) Mr Marco Hufnagel (DESY Hamburg) Torsten Bringmann (Oslo University)

Presentation materials