The SuperCDMS Experiment at SNOLAB

Astrophysical and cosmological observations suggest that roughly 85% of the Universe's matter is in the form of dark matter, believed to be an unobserved particle beyond the standard model. Direct detection experiments look for signatures produced by a dark matter particle scattering with a sensitive detector; due to their low energy thresholds, cryogenic detectors are well-suited for the detection of low-mass dark matter. The Super Cryogenic Dark Matter Search (SuperCDMS) is a direct detection dark matter experiment that uses semiconductor detectors instrumented with superconducting transition edge sensors. The previous phase of SuperCDMS took place in the Soudan mine in Northern Minnesota, and preparations are currently underway for the next phase of the experiment at SNOLAB, near Sudbury, ON. Prior to the commissioning of the main experiment, the Cryogenic Underground TEst (CUTE) facility at SNOLAB has been testing and characterizing SuperCDMS detectors underground since 2019. The low background of the CUTE facility in combination with the exceptional energy resolution of SuperCDMS detectors allows for competitive dark matter searches to be performed. This talk will discuss the detection principle and experimental setup of the SuperCDMS SNOLAB experiment, as well as some results from the detector testing at CUTE.