Speaker
Megan Hott
(Stony Brook University)
Description
Accurate predictions for dark matter-electron scattering in solids require an all-electron treatment together with a faithful description of dielectric screening beyond simple approximations. We compute scattering rates that incorporate dielectric screening at the random-phase approximation (RPA) level, including local field effects, with our updated code QCDark2. We show the impact of local field effects both at large momentum transfers relevant to halo dark matter, and at low momentum near the plasmon resonance, relevant to boosted dark matter.
Author
Megan Hott
(Stony Brook University)
Co-authors
Cyrus Dreyer
(Stony Brook University)
Marivi Fernandez-Serra
(Stony Brook University)
Prof.
Rouven Essig
(Stony Brook University)
Aman Singal
(Stony Brook University)