Speaker
Description
A precise characterization of CEνNS in the fully coherent regime will have important implications both in the search for new physics and in technological applications. To this aim, the NUCLEUS experiment will exploit the two reactor cores of the Chooz-B nuclear power plant in France as neutrino sources, and cryogenic calorimeters made of CaWO$_4$ and Al$_2$O$_3$ crystals read out by TES as neutrino detectors.
With a total target mass of 10g and a nuclear recoil energy threshold of O(10 eV), NUCLEUS aims to measure the CEvNS cross section with 10% statistical uncertainty in its first upcoming phase. Instrumented detector holders, a cryogenic active veto, layers of passive shielding and a muon veto constitute the system for background mitigation.
Recently, the experiment concluded its commissioning phase at the Technical University of Munich (TUM) with a measurement dedicated to the background model validation, successfully operating the different subsystems simultaneously. NUCLEUS is currently being relocated in its final experimental site, where an anti-neutrino flux of $ 1.7 \cdot 10^{12}$ ν/(cm2$\cdot$s) is expected from the reactor.
