DESY Theory Seminar

Roller Coaster Dark Matter

Name: Roller Coaster Dark Matter
Start: 2021-05-17T17:00:00+02:00
End: 2021-05-17T18:00:00+02:00
Location: zoom

by Akshay Ghalsasi (University of Pittsburgh)

Monday 17 May 2021, 17:00 → 18:00 Europe/Berlin

zoom

Description

Ultra-light scalar bosons can contribute to relic DM density through misalignment. However coupling ultralight scalars to SM fermions can generate the misalignment, relating the relic DM density to the scalar coupling strength to fermions. We find that Planck suppressed interactions between fermions and scalar can naturally give rise to the required DM density. In this talk we will discuss the generation of the misalignment through coupling with fermions and existing and future constraints which will confirm or rule out our model.