Physical Sciences and Mathematics Commons^™

Mapping The Neutrino Floor For Direct Detection Experiments Based On Dark Matter-Electron Scattering, Jason Wyenberg, Ian M. Shoemaker

Faculty Work Comprehensive List

We study the discovery reach of future Dark Matter (DM) Direct Detection experiments using DM-electron scattering in the presence of the solar neutrino background. At these low energies traditional methods for nuclear and electronic recoil discrimination fail, implying that the neutrino- nucleusscattering background can be sizable. We calculate discovery limits based on ionization values of signal and background, and quantify the dependence on the ionization model. Moreover, we explore how the dependence of the DM cross section discovery limits varies with exposure, electronic/nuclear recoil discrimination, DM form factors, and DM astrophysical uncertainties.