The NEXT step in the quest for neutrinoless double beta decay

28 Feb 2023
Seminars and colloquia
Dennis Sciama Lecture Theatre
Denys Wilkinson Building, Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH

Dr Roberto Soleti

University of the Basque Country

Seminar series
Experimental particle physics seminar
Knowledge of physics?
Yes, knowledge of physics required


The NEXT (Neutrino Experiment with a Xenon TPC) project is an international collaboration aimed at finding evidence of neutrinoless double beta decay in xenon. After its initial phase of research and development, the team was able to run a small-scale experiment called NEXT-White, which took place from 2016 to 2021 at the Laboratorio Subterr√°neo de Canfranc, an underground facility in the Spanish Pyrenees. The current phase of the project involves the construction and operation of a larger experiment, NEXT-100, which will employ 100 kg of xenon. The data taking phase is expected to begin in the fourth quarter of 2022.  In this talk we will discuss the most recent results of the experiment, and the plans to extend the technology to the large and ultra-low background detectors NEXT-HD and NEXT-BOLD, needed to fully explore the inverse hierarchy of neutrino masses.