Karlsruhe 2024 – scientific programme
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T: Fachverband Teilchenphysik
T 45: Search for Dark Matter 2
T 45.2: Talk
Tuesday, March 5, 2024, 16:15–16:30, Geb. 30.35: HSI
Current Status of the Direct Search Experiment for Light Dark Matter (DELight) — •Eleanor Fascione for the DELight collaboration — Heidelberg University
Despite the lack of discovery of one of the favoured dark matter candidates, the Weakly Interacting Massive Particle, there is vast parameter space to explore for dark matter masses below a few GeV, and the field of direct dark matter detection is constantly expanding to new frontiers. In particular, low mass dark matter candidates necessitate novel detector designs with lower thresholds and alternative target materials compared to e.g. the xenon-based experiments currently providing the strongest overall constraints on many dark matter models.
The Direct search Experiment for Light dark matter (DELight) will deploy a target of superfluid 4He instrumented with magnetic microcalorimeter (MMC) based wafer calorimeters in a setup optimized for low mass dark matter searches. In this talk the motivation, setup, and current status of this novel upcoming experiment will be presented.
Keywords: direct detection; helium; DELight; low mass; MMC