Effects of formation properties in one-proton radioactivity

TL;DR

This paper investigates how the proton formation probability, derived from experimental data, varies with a universal parameter and how it relates to nuclear deformation, improving understanding of proton radioactivity systematics.

Contribution

It introduces a universal parameter from microscopic decay models to analyze proton formation probabilities and their relation to nuclear deformation.

Findings

Proton formation probability divides into two regions based on the universal parameter.

The formation probability helps determine the deformation of the mother nucleus.

Systematics of proton emission half-lives are explained using this approach.

Abstract

It is shown that the proton formation probability, extracted from experimental data corresponding to one-proton radioactivity, is divided into two regions when plotted as a function of an universal parameter. This parameter is derived from a microscopic description of the decay process. In this way we explain the systematics of proton emission half-lives. At the same time the formation probability is shown to be a useful quantity to determine the deformation property of the mother nucleus.