Alpha decay favoured isotopes of some superheavy nuclei: Spontaneous fission versus alpha decay

TL;DR

This paper compares alpha decay and spontaneous fission in superheavy nuclei (Z=100-130), calculating their half-lives to identify which decay mode dominates and which isotopes are detectable via alpha decay.

Contribution

It provides a comparative analysis of alpha decay and spontaneous fission half-lives for superheavy elements using multiple models and formulas, aiding in identifying detectable isotopes.

Findings

Superheavy nuclei with shorter alpha decay half-life are more likely to be detected.

Calculated half-lives help determine dominant decay modes in superheavy elements.

Results assist in experimental detection of superheavy isotopes.

Abstract

Spontaneous fission and alpha decay are the main decay modes for superheavy nuclei. The superheavy nuclei which have small alpha decay half-life compared to spontaneous fission half-life will survive fission and can be detected in the laboratory through alpha decay. We have studied the alpha decay half-life and spontaneous half-life of some superheavy elements in the atomic range Z = 100-130. Spontaneous fission half-lives of superheavy nuclei have been calculated using the phenomenological formula and the alpha decay half-lives using Viola-Seaborg-Sobiczewski formula (Sobiczewski et al. 1989), semi empirical relation of Brown (1992) and formula based on generalized liquid drop model proposed by Dasgupta-Schubert and Reyes (2007). The results are reported here.