Low-Background Detectors in the Quest for Dark Matter

Evidence from a variety of research directions strongly suggests the presence of an enigmatic and as yet undiscovered form of matter known as dark matter. Its nature still eludes us.

In this talk, I will introduce dark matter and discuss some of the evidence for it, before highlighting two different experimental efforts: the international XENON project, whicht searches primarily for weakly interacting massive particles (WIMPs), a well motivated dark matter candidate, and a new initiative, DELight, which will use superfluid helium to probe light dark matte candidates.