Bonn 2020 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 23: Dark Matter I

T 23.6: Vortrag

Dienstag, 31. März 2020, 18:25–18:40, H-HS I

Super Cryogenic Dark Matter Search at SNOLAB — •Alexander Zaytsev for the SuperCDMS collaboration — Universität Hamburg, Hamburg, Germany

Convincing astrophysical observations point to the abundant existence of dark matter in the Universe. Many experiments have been using different techniques to detect dark matter directly. However, despite their efforts, dark matter particles remain to be observed to this day. The Super Cryogenic Dark Matter Search experiment (SuperCDMS) is making use of the low-background environment at the SNOLAB underground laboratory (Canada) to detect dark matter interactions with silicon and germanium crystal detectors operated at temperatures as low as 15 mK. The most popular particle dark matter candidates include Weakly Interacting Massive Particles (WIMPs) which recoil from crystal nuclei, producing a phonon signal in the detector. Moreover, the SuperCDMS experiment is capable of detecting electron recoil signals, which could be induced, for example, by Light Dark Matter, dark photons and Axion-Like Particles. SuperCDMS uses two types of detectors: iZIP detectors which measure both phonon and ionization signals and provide electron and nuclear recoil discrimination, and HV detectors which provide an extremely low energy threshold due to a very strong amplification of the ionization signal. The purpose of this talk is to provide an overview of the SuperCDMS experiment, discuss the detection mechanisms and the projected sensitivity to different dark matter channels.