Deployment and performance of a Low-Energy-Threshold Skipper-CCD inside a nuclear reactor

• DOI: 10.1007/jhep10(2024)155
• Publication Date: 2024-10-23T15:02:19Z
• Authors: E. Depaoli; D. Rodrigues; I. Sidelnik; P. Bellino; A. Botti; D. Delgado; M. Cababié; F. Chierchie; J. Estrada; G. Fernández Moroni; S. Perez; J. Tiffenberg
• Keywords: Low energy

A bstract Charge Coupled Devices (CCD) are being used for reactor neutrino experiments and have already demonstrated their potential in constraining new physics models. The prospect of a Skipper-CCD experiment looking standard beyond model (BSM) nuclear has been evaluated different benchmark scenarios. Here, we report the first installation 2-g inside containment building 2 GW th power plant analyze its performance throughout 18 months operation. sensor was successfully deployed at Atucha II, Argentina, 12 meters away from center core. We discuss challenges involved commissioning detector present data acquired during ON OFF periods, with functioning sub-electron readout noise 0.17 e − . Based on an exposure 56.8 g day two sets total 118.1 characterize system evaluate sensitivity to CEvNS. achieved background rate 33 kdru low threshold 45 eV ee ongoing efforts improve sensitivities CEvNS BSM interaction also discussed.