Theoretical Studies on the α-decay Half-Lives of Even-Even Lv Isotopes

Dashty T Akrawy

doi:10.11648/j.ijepe.20170601.11

Abstract

The α-decay half-lives for even-even Lv isotopes within the range 290 ≤ A ≥ 314 which have Z = 116, have been evaluated using Gamow-like model (GLM) which is based on Gamow theory, the different semi-empirical formula for α-decay half-lives also was used. The half-lives were evaluated using theoretical Q-value. The computed α-decay half-lives were compared with CPPM, and also with empirical formula, the result was achieved in a good agreement.

Highlights

The α-decay half-lives is one of the most important decay modes of nuclei which was described in 1928 [1] in base of quantum tunneling, who assumed the α-particle was due to the quantum tunneling phenomenon of a charged α-particle through the Coulomb barrier
The aim of this work is to determine the α-decay half-lives of even-even Lv isotopes within Gamow-Like Model (GLM) and to compared with another theoretical model such as CPPM [11], Royer formula [12], Universal Decay Low (UDL) [13], Viola-Seaborg formula (VSS) [14], Semi-empirical formula for Poenaru et
The theoretical α-decay half-lives of even-even Lv isotopes, which have atomic number Z = 118 within the range A = 178-220 have been studied by using Gamow-Like Model

Summary

Introduction

The α-decay half-lives is one of the most important decay modes of nuclei which was described in 1928 [1] in base of quantum tunneling, who assumed the α-particle was due to the quantum tunneling phenomenon of a charged α-particle through the Coulomb barrier. Violet and Seaborg was predictive a simple formula which is based on Gamow model [2]. To determine aα-decay half-lives there are more than model that was used as shown in the literature such as Royer, he generalized the liquid drop model to describe αdecay half-lives [5], and that formula was used to evaluate the α-decay half-lives for heavy and superheavy nuclei [6]. The aim of this work is to determine the α-decay half-lives of even-even Lv isotopes within Gamow-Like Model (GLM) and to compared with another theoretical model such as CPPM [11], Royer formula [12], Universal Decay Low (UDL) [13], Viola-Seaborg formula (VSS) [14], Semi-empirical formula for Poenaru et. Al. (SemFIS) [15], and with Denisov & Khudenko formula (DEKH) [16]

Objectives

Results

Conclusion