Ponente
Descripción
The NEXT (Neutrino Experiment with a Xenon TPC) collaboration seeks to discover the neutrinoless double beta decay (ββ0ν) of Xe-136 using a high-pressure gas time projection chamber with electroluminesence gain and optical read-out. A first medium-scale prototype with 5-kg of xenon, NEXT-White, operated at the Laboratorio Subterraneo de Canfranc (LSC) from 2016 to 2021. This prototype has proven the outstanding performance of the NEXT technology in terms of energy resolution (<1% FWHM at 2.6 MeV) and event topology reconstruction to identify signal and background events. Currently, the collaboration is constructing the NEXT-100 detector holding 100 kg of Xe-136 at 15 bar which is expected to start data taking at the end of 2023. In this talk, I will review the most recent results of the NEXT-White detector, I will describe the NEXT-100 detector and the plans to further extend the technology for a future tonne-scale NEXT detector.
