Nuclear matrix elements for neutrinoless double beta decays and spin-dipole giant resonances

TL;DR

This paper explores the relationship between spin-dipole giant resonances and nuclear matrix elements for neutrinoless double beta decays, providing insights to improve theoretical models in neutrino physics.

Contribution

It establishes a novel connection between experimental SD giant resonance data and DBD-NME calculations, aiding in reducing uncertainties in neutrino physics models.

Findings

SD resonance energy and strength are closely related to DBD-NME

The study offers new insights into spin-isospin correlations

Results help refine theoretical calculations of neutrinoless double beta decay

Abstract

Nuclear matrix elements (NMEs) for neutrinoless double beta decays (DBDs) are required for studying neutrino physics beyond the standard model by DBD. The experimental spin-dipole (SD) giant resonance energy and the SD strength are shown for the first time to be closely related to the DBD-NME, and are used for studying the spin-isospin correlation and the quenching of the axial-vector coupling. So they are used to help the theoretical model calculation of the DBD-NME.