April 29, 2023
OSU Physics Research Building
America/New_York timezone

Directly Detecting Light Dark Matter

Apr 29, 2023, 4:30 PM
Smith Seminar Room (OSU Physics Research Building)

Smith Seminar Room

OSU Physics Research Building


Robert McGehee


While the experimental program to detect ever lighter dark matter is proceeding full steam ahead, the theory of such light, detectable dark matter is at a crossroads. I will detail two examples of sub-GeV hadrophilic dark matter models which these future direct detection endeavors may discover while highlighting the serious challenges model builders face. The first achieves probe-able direct detection cross sections by way of a late-time, dark-sector phase transition, while the second does so by assuming the entire thermal bath is reheated at very low temperatures. Both models lead to dark matter-nucleon scattering cross sections of interest for near-future experiments for dark matter masses in the range of 100 keV-100 MeV, often in parts of parameter space with few or no models.

Presentation materials