Probing Majorana neutrinos in the regime of the normal mass hierarchy
Steven D Biller

TL;DR
This paper proposes a feasible experimental approach using 130Te and liquid scintillator technology to probe Majorana neutrino masses within the normal hierarchy, potentially enabling highly sensitive future experiments.
Contribution
It introduces a novel experimental design for neutrinoless double beta decay targeting the normal hierarchy with specific isotope and detector choices.
Findings
130Te identified as the optimal isotope candidate
Liquid scintillator with metal loading as the preferred detector technology
Potential for a large-scale, highly sensitive future experiment
Abstract
An approach to developing a feasible neutrinoless double beta decay experiment capable of probing Majorana masses in the regime of the nondegenerate normal neutrino mass hierarchy is proposed. For such an experiment, this study suggests that 130Te is likely the best choice of candidate isotope and that metal-loaded liquid scintillator likely represents the best choice of detector technology. An evaluation of the required loading, scintillator properties and detector configuration is presented. While further development of Te-loaded liquid scintillator is required, recent progress in this area suggests that this task may not be insurmountable. This could open the door for a future experiment of unparalleled sensitivity that might be accommodated in a volume of the order of 10-20 kilotons. To the best of our knowledge, this is the first time that a potentially practical experimental…
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