Improved parametrization of the unified model for alpha decay and alpha capture

TL;DR

This paper enhances a unified model to better predict alpha decay half-lives and alpha capture cross sections across various nuclei, using updated nuclear data and parameters for improved accuracy.

Contribution

The paper introduces an improved parametrization of the unified model, incorporating updated nuclear data to accurately describe alpha decay and capture phenomena.

Findings

Accurately describes alpha decay half-lives in 401 nuclei.

Successfully models alpha capture cross sections for selected isotopes.

Empirical relationships also effectively predict decay half-lives.

Abstract

The updated data for the ground-state-to-ground-state alpha-transition half-lives in 401 nuclei and the alpha capture cross sections of 40Ca, 44Ca, 59Co, 208Pb and 209Bi are well described in the framework of the unified model for alpha-decay and alpha-capture. The updated values of the alpha decay half-lives, the binding energies of nuclei, the spins of parent and daughter nuclei, and the surface deformation parameters are used for the reevaluation of the model parameters. The data for the ground-state-to-ground-state alpha-decay half-lives are also well described by the empirical relationships.