Combining Hybrid and Opaque Scintillator Techniques in the Search for Double Beta Plus Decays
Abstract
Double beta plus decay is a rare nuclear disintegration process. Difficulties in its measurement arise from suppressed decay probabilities, experimentally challenging decay signatures and low natural abundances of suitable candidate nuclei. In this article, we propose a new detector concept to overcome these challenges. It is based on the first-time combination of hybrid and opaque scintillation detector technology paired with novel light read-out techniques. This approach is particularly suitable detecting positron (beta plus) signatures. We expect to discover two-neutrino double beta plus decay modes within 1 tonne-week exposure and are able to probe neutrinoless double beta plus decays at several orders of magnitude improved significance compared to current experimental limits.
Keywords
Cite
@article{arxiv.2407.05999,
title = {Combining Hybrid and Opaque Scintillator Techniques in the Search for Double Beta Plus Decays},
author = {NuDoubt++ Collaboration and : and Manuel Böhles and Sebastian Böser and Magdalena Eisenhuth and Cloé Girard-Carillo and Kitzia M. Hernandez Curiel and Bastian Keßler and Kyra Mossel and Veronika Palušová and Stefan Schoppmann and Alfons Weber and Michael Wurm},
journal= {arXiv preprint arXiv:2407.05999},
year = {2025}
}
Comments
18 pages, 9 figures, 3 tables