43rd International Conference on High Energy Physics

Technologies for a Future Neutrino Mass Experiment with Tritium

Not scheduled

20m

Natal, Brazil

Talk Detectors for Future Facilities, R&D and Novel Techniques (including Quantum Sensors)

Speaker

Neven Kovac (Institute for Astroparticle Physics, Karlsruhe Institute of Technology)

Description

At the end of 2025, KATRIN (KArlsruhe TRItium Neutrino) experiment reached its desired goal of 1000 days of measurement, allowing the electron anti-neutrino mass to be constrained to a value in the vicinity of 0.3 eV. Going beyond this limit, and eventually excluding the inverted mass ordering, is the task of future experiments.
Achieving these ambitious goals requires a paradigm shift in the experimental approach, necessitating development of new and scalable technologies. In particular, a combination of an ultra-high resolution differential detection method together with a high-luminosity atomic-tritium source shows a promising path forward.
Building upon the success of the KATRIN experiment, in the following years we plan to develop a quantum-sensor-array and atomic-tritium demonstrators, making use of the existing KATRIN and TLK (Tritium Laboratory Karlsruhe) infrastructure.
In this talk, we present the status of our R&D efforts towards development of these new technologies for KATRIN++, as a next-generation neutrino mass experiment with tritium.
We will show the preliminary sensitivity studies and present the results of our first characterization campaigns. We will show the status of development of the atomic-tritium source as well as our plans for the proof-of-principle measurements of the tritium $\beta$-spectrum with an ultra-high resolution cryogenic micro-calorimeters.