Speaker
Description
Exploring coherent neutrino-nucleus scattering with NUCLEUS
Coherent elastic neutrino nucleus scattering (CE$\nu$NS) offers a unique way to study neutrino properties and to search for new physics beyond the Standard Model. The NUCLEUS experiment aims to measure CE$\nu$NS with reactor anti-neutrinos down to unprecedented low nuclear recoil energies. NUCLEUS will make use of CaWO$_4$ and Al$_2$O$_3$ based cryogenic detectors to perform precision measurements of CE$\nu$NS in order to reach a 20eV detection threshold and a rise time of a few 100$\mu$s which allows the operation above ground. After commissioning at TUM in late 2021, the experiment will be assembled at the Very Near Site, a new shallow experimental room in CHOOZ B nuclear power plant in France, in between two 4.25GW reactor cores with an average neutrino flux of $1.7\cdot 10^{12} \frac{\overline{\nu}_e}{\text{s} \text{ cm}^{2}}$ at the detector's location. NUCLEUS plans to start its first phase in early 2023 and to obtain a measurement of the process with 10g target in few months of data taking, thanks to the high CE$\nu$NS cross-section.
