Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 22: Neutrino Physics II

T 22.8: Vortrag

Dienstag, 17. März 2026, 18:00–18:15, AudiMax

Exploring coherent elastic neutrino-nucleus scattering: status of the NUCLEUS experiment — •Lars Wienke for the NUCLEUS collaboration — Technische Universität München, München, Deutschland

Coherent Elastic Neutrino-Nucleus Scattering (CEνNS) is a Standard Model process in which a neutrino scatters coherently off an entire nucleus via weak neutral current interactions. The CEνNS cross section is several orders of magnitude larger than that of other low-energy neutrino interactions, which makes this process a powerful tool to probe various physics scenarios, motivating a worldwide effort to detect the tiny nuclear recoils it produces.

The NUCLEUS experiment aims to perform precision measurements of CEνNS properties using reactor antineutrinos at the Chooz nuclear power plant. In order to measure nuclear recoils below 100eV, NUCLEUS employs a multi-target detection system, consisting of CaWO₄ and Al₂ O₃ cryogenic calorimeters with an O(10eV) energy threshold, surrounded by a twofold system of instrumented cryogenic vetoes, an external passive shielding and a muon veto to improve the identification and discrimination of backgrounds.

At present, the experiment is in the last steps of commissioning in the shallow underground laboratory at the Technical University of Munich (TUM), and the relocation to the Chooz-B nuclear power plant in the French Ardennes is underway. In this talk, I will provide an overview of the experiment’s current status, focusing on the latest developments, milestones achieved and future plans.

Keywords: Neutrino detection; coherent elastic neutrino nucleus scattering; Cryogenic detectors; Reactor neutrinos; Neutrino