Speaker
Description
The COherent Neutrino-Nucleus Interaction Experiment (CONNIE) investigates coherent elastic neutrino-nucleus scattering (CEvNS) using high-resistivity silicon Skipper-CCDs at the Angra-2 nuclear reactor in Brazil. The introduction of Skipper-CCD technology has enabled an unprecedented low-energy threshold of 15 eV, significantly improving sensitivity to low-energy events and rare interactions. With an exposure of 18.4 g-days collected between 2021 and 2022, CONNIE has placed upper limits on CEvNS and provided valuable data for exploring physics beyond the Standard Model, including dark matter-electron scattering via diurnal modulation and the detection of relativistic millicharged particles from reactors. Additionally, Skipper-CCD data have been used to investigate non-standard neutrino interactions with new light mediators. This work presents CONNIE’s latest results and examines how Skipper-CCD data can probe rare processes and explore new physics scenarios.