α-decay systematics for superheavy nuclei

Abstract

In this study, the \ensuremath{\alpha}-decay half-life of 160 superheavy nuclei (SHN) with $105\ensuremath{\le}Z\ensuremath{\le}120$ has been calculated using six empirical formulas: the scaling law of Brown (SLB), the modified scaling law Brown formula (MSLB), the Yibin et al. formula (YQZR), the modified Yibin et al. formula (MYQZR), the Viola-Seaborg formula (VS), and the modified Viola-Seaborg formula (MVS). The formulas were readjusted with new coefficients using the experimental \ensuremath{\alpha}-decay half-life data of 356 nuclei. The six models were tested for their accuracy by comparing with the experimental results, and the MYQZR reveals best agreement. Later on the calculations have been extended to cover the specified range of SHN isotopes. The obtained results from MYQZR can be adopted to predict acceptable \ensuremath{\alpha}-decay half-lives for the studied SHN nuclei.