Nov 23 – 25, 2020
Europe/Stockholm timezone

Novel crystal responses to general dark matter-electron interactions

Nov 25, 2020, 10:40 AM


Einar Urdshals (Chalmers)


Direct detection experiments probing dark matter scattering off electrons in semiconductors provide leading constraints on sub-GeV dark matter. In this work, we model these interactions using non-relativistic effective operators, and identify and compute five dark matter and crystal response functions, four of them for the first time. We then use these responses to calculate the expected excitation rates in Silicon and Germanium crystals, and compute exclusion limits based on published experimental results.

Abstract Track Flash talk, Astroparticle physics

Primary author

Einar Urdshals (Chalmers)


Riccardo Catena (Chalmers University of Technology) Timon Emken (Chalmers University of Technology)

Presentation materials