Predictions of alpha decay half lives of heavy and superheavy elements

  • Samanta C
  • Chowdhury P
  • Basu D
  • 26

    Readers

    Mendeley users who have this article in their library.
  • 66

    Citations

    Citations of this article.

Abstract

Theoretical estimates for the lifetimes of several isotopes of heavy elements with Z = 102 - 120 are presented by calculating the quantum mechanical tunneling probability in a WKB framework and using microscopic nucleus-nucleus potential obtained by folding the densities of interacting nuclei with the DDM3Y effective nuclear interaction. The α-decay half lives calculated in this formalism using the experimental Q-values are in good agreement over a wide range of experimental data. Half lives are also calculated using Q-values extracted from two mass formulae. The Viola-Seaborg-Sobiczewski (VSS) estimates of α-decay half lives with the same Q-values are presented for comparison. The half life calculations are found to be quite sensitive to the choice of Q-values. Comparison with the experimental data delineates the inadequacies of older mass predictions in the domain of heavy and superheavy elements as compared to the newer one by Muntian-Hofmann-Patyk-Sobiczewski, and highlights necessity of a more accurate mass formula which can predict Q-values with even higher precision. © 2007 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • DDM3Y
  • Fusion reaction
  • Half life
  • Mass formula
  • SHE
  • VSS
  • WKB

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free