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Experimental Particle and Astro-Particle Physics Seminar
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Europe/Zurich
Description
Abstract: In recent decades, astronomical and cosmological observations consistently revealed that most of the Universe's matter remains hidden to even the most sensitive telescopes due to its non-luminous nature, so-called dark matter. Exploring dark matter particles has become a tantalizing pursuit in modern physics. New-generation direct search experiments aim at the observation of weak-scale dark matter particles in direct interactions within the target material, with successors already in planning. Simultaneously, a new era has begun for the direct detection of ever lighter dark matter candidates, leveraging novel detector designs with ultra-low detection thresholds. These advancements enable the exploration of new detection channels and unprecedentedly low dark matter masses. This presentation introduces direct dark matter searches in general and highlights a new project, DELight, which will take advantage of the unique properties of superfluid helium-4 to search for dark matter down to the sub-100MeV mass scale.