HET Brown Bag Seminar | Cosmological Signatures of Sub-MeV Dark Matter Freeze-In
Katelin Schultz (Berkeley)
Wednesday, September 19, 2018
3481 Randall Laboratory Map
Dark matter could be a thermal relic of freeze-in, where the dark matter is produced by extremely feeble interactions with Standard Model particles dominantly at low temperatures. The simplest sub-MeV dark matter models with freeze-in include models with a kinetically-mixed dark photon mediator, or equivalently models where dark matter is millicharged under the Standard Model U(1). In this talk I will discuss how such models can impact and be constrained by cosmological observables, including the CMB, the Lyman-alpha forest, and the EDGES observation of the cosmological 21 cm global signal.
|Event Type:||Workshop / Seminar|
|Tags:||Free, Graduate Students, Physics, Science, Talk|
|Source:||Happening @ Michigan from HET Brown Bag Series, Department of Physics|