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Current and future cosmological probes of dark matter microphysics
Speaker
Markus Mosbech RWTH Aachen (Aachen, Germany)
Abstract
The microphysics of dark matter remains a mystery, with current data only setting upper bounds on interaction cross sections, or lower bounds on the mass in the case of a thermal relic. Going to higher redshift and smaller scales will let us improve these bounds, but more importantly, may allow us to distinguish between models with otherwise similar signals. In particular, I will present a novel method for constraining models with suppressed small scale structure using gravitational waves, along with forecasts for complementary constraints from 21cm intensity mapping. The latter is especially important regarding what is necessary to distinguish interacting dark matter from warm dark matter.
Date and Time
December 7 2023 4pm KST (= 7am UTC) Zoom link (active once the seminar starts)