We explore the stopping effect that results from interactions between dark
matter and nuclei as the dark matter particles travel undergound towards the
detector. Although this effect is negligible for heavy dark matter particles,
there is parameter phase space where the underground interactions of the dark
matter particles with the nuclei can create observable differences in the
spectrum. Dark matter particles that arrive on the detector from below can have
less energy from the ones arriving from above. These differences can be
potentially detectable by upcoming directional detectors. This can unveil a
large amount of information regarding the type and strength of interactions
between nuclei and light dark matter candidates.Comment: 9 pages, 5 figure
