Theoretical Investigation of {\alpha}-decay in Heavy and Superheavy Isomers

TL;DR

This paper presents a refined theoretical approach to estimate alpha-decay half-lives in heavy and superheavy isomers, incorporating isospin and angular momentum, and predicts potential decay in unobserved isomeric nuclei.

Contribution

It introduces a refined formula for alpha-decay half-life estimation that aligns well with experimental data and predicts decay in unobserved isomeric states.

Findings

Refined formula accurately predicts experimental alpha-decay half-lives.

Inclusion of isospin and angular momentum improves prediction accuracy.

Predictions of alpha-decay in unobserved isomeric nuclei aid future experiments.

Abstract

The heavy and superheavy elements of the periodic table predominately disintegrate by {\alpha}-decay, facilitating transitions mainly between ground states and occasionally involving isomeric states. This study focuses on estimating the half-lives of {\alpha}-transitions both from and to isomeric states, using a recently refined formula which shows excellent agreement with experimental data when isospin of parent nucleus as well as angular momentum taken away by the {\alpha} particle are incorporated. These findings provide valuable insights for upcoming experimental investigations of isomeric states. Additionally, the study predicts potential {\alpha}-decay in several yet-unobserved isomeric nuclei, contributing to a deeper understanding of nuclear structure in heavy and superheavy elements.