A Semi-Empirical Formula for Two-Neutrino Double-Beta Decay

Fuente: arXiv
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Auteurs principaux: Niţescu, Ovidiu, Šimkovic, Fedor
Format: Preprint
Publié: 2024
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author Niţescu, Ovidiu
Šimkovic, Fedor
author_facet Niţescu, Ovidiu
Šimkovic, Fedor
contents We propose a semi-empirical formula (SEF) for calculating the nuclear matrix elements (NMEs) for two-neutrino double-beta decay. The SEF's dependence on the proton and neutron numbers, the pairing, isospin, and deformation properties of the initial and final nuclei is inspired by the insights offered by nuclear many-body methods and trends in experimental data. Compared with the previous phenomenological and nuclear models, the SEF yields the best agreement with the experimental NMEs. Its stability and predictive power are cross-validated, and predictions are provided for nuclear systems of experimental interest.
format Preprint
id arxiv_https___arxiv_org_abs_2407_10422
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A Semi-Empirical Formula for Two-Neutrino Double-Beta Decay
Niţescu, Ovidiu
Šimkovic, Fedor
Nuclear Theory
High Energy Physics - Phenomenology
We propose a semi-empirical formula (SEF) for calculating the nuclear matrix elements (NMEs) for two-neutrino double-beta decay. The SEF's dependence on the proton and neutron numbers, the pairing, isospin, and deformation properties of the initial and final nuclei is inspired by the insights offered by nuclear many-body methods and trends in experimental data. Compared with the previous phenomenological and nuclear models, the SEF yields the best agreement with the experimental NMEs. Its stability and predictive power are cross-validated, and predictions are provided for nuclear systems of experimental interest.
title A Semi-Empirical Formula for Two-Neutrino Double-Beta Decay
topic Nuclear Theory
High Energy Physics - Phenomenology
url https://arxiv.org/abs/2407.10422