R&D towards an atomic hydrogen source for future neutrino mass experiments

21 Jun 2024, 17:30
2h
Near Aula Magna (U6 building) (University of Milano-Bicocca)

Near Aula Magna (U6 building)

University of Milano-Bicocca

Poster Neutrino mass Poster session and reception 2

Speakers

Caroline Rodenbeck (Karlsruhe Institute of Technology (KIT), TLK) Larisa Thorne (Johannes Gutenberg University Mainz)

Description

The neutrino mass is one of the still-to-be-solved puzzles of particle physics. Measuring the neutrino mass is possible by performing precision spectroscopy of the tritium beta-decay spectrum at its endpoint. Until now, experiments following this approach use molecular tritium and are therefore limited by the broadening of the molecular final state distribution.

For future experiments aiming for sensitivities as low as the lower boundaries obtained by neutrino oscillation experiments (0.05 eV/c$^2$ in case of inverted ordering, or 0.009 eV/c$^2$ for normal ordering), atomic tritium sources are essential.

Research on atomic tritium sources is performed at the Johannes Gutenberg University (JGU) in Mainz in the context of the Project 8 experiment and at the Tritium Laboratory Karlsruhe (TLK) of the Karlsruhe Institute of Technology (KIT) in the context of the KATRIN++ program.

Currently, the focus of the JGU group is on developing and characterizing a high-flow atomic source using inactive hydrogen, whereas the focus of the TLK group is on running a source with tritium for the first time, which is on schedule for operation by the end of 2024.
Subsequently, in a joint venture, these lines of research will be merged to create the Karlsruhe Mainz Atomic Tritium experiment (KAMATE).

The poster will present the current developments for atomic sources at JGU and KIT, and how we combine them into a joint effort to realize an atomic tritium source for future neutrino mass experiments.

Poster prize Yes
Given name Rodenbeck
Surname Caroline
First affiliation Karlsruhe Institute of Technology (KIT), Institute for Astroparticle Physics (IAP), Tritium Laboratory Karlsruhe (TLK)
Institutional email caroline.rodenbeck@kit.edu
Gender Female

Primary authors

Caroline Rodenbeck (Karlsruhe Institute of Technology (KIT), TLK) Larisa Thorne (Johannes Gutenberg University Mainz)

Co-authors

Alec Lindman (JGU Mainz) Beate Bornschein (Karlsruhe Institute of Technology (KIT), TLK) Brunilda Mucogllava (Johannes Gutenberg University Mainz) Christian Matthé (Johannes Gutenberg University Mainz) Daniel Kurz (Karlsruhe Institute of Technology (KIT), TLK) Darius Fenner (Johannes Gutenberg University Mainz) David Hillesheimer (Karlsruhe Institute of Technology (KIT), TLK) Elias Lütkenhorst (Karlsruhe Institute of Technology (KIT), TLK) Fabian Piermeier (Johannes Gutenberg University Mainz) Florian Hanß (Karlsruhe Institute of Technology (KIT), TLK) Florian Priester (Karlsruhe Institute of Technology (KIT), TLK) Leonard Hasselmann (Karlsruhe Institute of Technology (KIT), TLK) Magnus Schlösser (Karlsruhe Institute of Technology) Marco Röllig (Karlsruhe Institute of Technology (KIT), TLK) Martin Fertl (Johannes Gutenberg University Mainz) Maxim Astaschov (Johannes Gutenberg University Mainz) Maximilian Hüneborn (Johannes Gutenberg University Mainz) Michael Sturm (Karlsruhe Institute of Technology (KIT), TLK) Robin Größle (Karlsruhe Institute of Technology (KIT), TLK) Sebastian Böser (Universitiy Mainz / PRISMA) Sebastian Koch (Karlsruhe Institute of Technology (KIT), TLK) Stefan Welte (Karlsruhe Institute of Technology (KIT), TLK) Thomas Thümmler (Karlsruhe Institute of Technology (KIT))

Presentation materials