Dark matter direct detection with SuperCDMS Soudan

[摘要] The Cryogenic Dark Matter Search Experiment (CDMS) and its successor, SuperCDMS, have had a long history of establishing world-leading upper limits on the interaction of Weakly Interacting Massive Particles (WIMPs) with standard model nucleons. SuperCDMS uses arrays of cryogenic germanium detectors to achieve excellent discrimination between the nuclear recoils expected for WIMP interactions and radioactively produced electron recoils through the collection of ionization and athermal phonons. Recent analyses of the data collected from the current installation of Interleaved Z-Sensitive Ionization and Phonon (iZIP) detectors have probed new regions of the WIMP parameter space, particularly in the region of low-mass WIMP interactions. This paper will discuss the current work of the SuperCDMS collaboration.

[发布机构] 333 LeConte Hall, Department of Physics, University of California at Berkeley, Berkeley; CA; 94720, United States^1

[关键词] Cryogenic dark matter searches;Direct detection;Germanium detector;Nuclear recoil;Parameter spaces;Standard model;Upper limits;Weakly interacting massive particles