Status and future of the CDMS experiment: CDMS-II to SuperCDMS

摘要

The Cryogenic Dark Matter Search experiment (CDMS-II) employs low-temperature Ge and Si detectors to detect WIMPs via their elastic scattering interactions with the target nuclei. No Dark Matter signal has been observed so far, resulting in a limit on the spin-independent WIMP-nucleon elastic scattering cross-section with a minimum of 1.6×10?43 cm2 at a WIMP mass of 60 GeV c?2. To increase the sensitivity, new one inch thick detectors have been developed which will be used in the SuperCDMS phase. SuperCDMS will be operated at SNOLAB with an expected sensitivity on the spin-independent WIMP-nucleon elastic scattering cross-section of 1×10?45 cm2 at the 25 kg stage.