Systematic study of alpha-decay half-lives using Royer and related formula

The alpha decay half-lives of 356 isotopes were studied using the Royer and related Formula and are compared with experimental data. The study shows that the predicted half-lives match well with experimental data over a wide range for each (Z, N) parity of the parent nuclei. We have calculated the standard deviation of log(10) T-alpha(s), for each formula and our study indicate that, for alpha decay studies, generally, analytical l-dependent formula proposed by Royer, with sigma(RB) = 0.4373, is the best model followed by the formula proposed by Denisov and Khudenko (DK), sigma(DK) = 0.4743 for all 356 nuclei. We hope the present study is a clear indicator of the predictive power of Royer and related formula. (C) 2018 Elsevier B.V. All rights reserved.