Future of neutrinoless double-beta decay: summit at MPIK

The 3rd International Summit on the Future of Neutrinoless Double-beta Decay held at MPIK discussed strategy and roadmap for next-generation experiments.

Understanding the neutrino is a global scientific priority. One of the most promising approaches to addressing fundamental questions about this elusive particle is the search for neutrinoless double-beta decay is. Worldwide efforts are actively driving progress in the quest for this rare phenomenon. The discovery of this decay would have far-reaching consequences in particle physics and cosmology and could answer some of the most fundamental questions in astroparticle physics.

The third international summit on this topic was hosted at the Max-Planck-Institut für Kernphysik (MPIK) in Heidelberg from May 26 – 27 2025. It brought together about 80 representatives of research institutions, funding agencies, and experts in the field from 10 leading European and North American countries.

The agenda included presentations from next-generation major neutrinoless double-beta decay experiments and related scientific topics. A special focus was be placed on in-depth discussions regarding the global strategy for the field. Part of the programme was an excursion to the KATRIN neutrino mass experiment located the Karlsruhe Institute of Technology.

The MPIK played a central role in the organising and hosting the meeting. As members of the organising committee, director Prof. Susanne Mertens, Dr. Bernhard Schwingenheuer and Dr. Christoph Wiesinger were happy to see the participants appreciating the hospitality of the institute as well as the beauty of the city of Heidelberg.


Weblinks:

Website of the summit

Division Astroparticle Physics at MPIK

Project LEGEND


Contact

Prof. Dr. Susanne Mertens
Phone: +49 6221 516-805


Press & Public Outreach

Dr. Renate Hubele / PD Dr. Bernold Feuerstein
Phone: +49 6221 516-651 / +49 6221 516-281


Credit: Christian Föhr / MPIK

Participants of the summit. Credit: Ralf Lackner / MPIK