Gravitational particle production and freeze-in at stronger coupling

by Prof. Oleg Lebedev (Helsinki U.)

Thursday 15 May 2025, 16:00 → 17:30 Asia/Seoul

Zoom

Title: Gravitational particle production and freeze-in at stronger coupling

Speaker: Oleg Lebedev (Helsinki U.)

Abstract: Gravitational particle production during and after inflation provides an irreducible background for dark matter studies. This brings predictivity of non-thermal dark matter models into question. I discuss a class of freeze-in models which are free of this problem and interpolate between WIMPs and FIMPs. Unlike the traditional freeze-in models, this framework can be probed through direct dark matter detection as well as via collider observables.

 

Zoom link: 

https://kias-re-kr.zoom.us/j/86130682117?pwd=Xds96rKNHLbSsT0MGS60c6INQSuNF5.1

Meeting ID: 861 3068 2117
Passcode: 090522