Speaker
Description
The Cryogenic Rare Event Search with Superconducting Thermometers (CRESST) is a direct dark matter detection experiment, located at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy.
It employs cryogenic calorimeters instrumented with Transition Edge Sensors (TESs) and operates at millikelvin temperatures (~15 mK). This technology enables CRESST to achieve outstanding nuclear recoil energy thresholds of O(10 eV), reaching high sensitivity to dark matter particles in the sub-GeV mass range.
However, its low-mass sensitivity is currently limited by an unexpected excess of events at low energies (below ~200eV), known as the Low Energy Excess (LEE), whose origin remains unclear. Understanding and mitigating the LEE is one of the primary objectives of the CRESST collaboration.
This talk provides an overview of the CRESST experiment, covering the working principles of its detectors, recent efforts to characterise and mitigate the LEE, and the latest dark matter search results.
| Parallel session | New Physics Searches: Dark Matter and High-Frequency Gravitational Waves |
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