A pilot dark matter particle search experiment

We summarize the status of a proposed pilot dark matter experiment in which cryogenic detectors will be used to detect weakly interacting massive particle (WIMP) interactions in cold (∼20 mK) and pure crystals. Two specific cryogenic detection schemes are reviewed. In one, the detectors sense both phonons and ionization produced by a scattering event in a Ge target crystal. In the other, thin films of superconductors are used to detect athermal and quasidiffuse phonons produced in Si. We also describe a dedicated underground laboratory recently constructed at Stanford which will be used for our dark matter search