We report on the calculation of the neutrinoless double-beta decay nuclear matrix element for Ge-76 within the framework of the realistic shell model. The effective shell-model Hamiltonian and the two-body transition operator describing the decay are derived by way of many-body perturbation theory. Particular attention is focused on the role played by the so-called Pauli blocking effect in the derivation of the effective operator.
Neutrinoless Double-Beta Decay and Realistic Shell Model
Nunzio Itaco;Luigi Coraggio;
2019
Abstract
We report on the calculation of the neutrinoless double-beta decay nuclear matrix element for Ge-76 within the framework of the realistic shell model. The effective shell-model Hamiltonian and the two-body transition operator describing the decay are derived by way of many-body perturbation theory. Particular attention is focused on the role played by the so-called Pauli blocking effect in the derivation of the effective operator.File in questo prodotto:
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