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Nuclear half-lives for alpha-radioactivity of elements with 100 <= Z <=

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Title:
Nuclear half-lives for alpha-radioactivity of elements with 100 <= Z <= 130 Authors:
Chowdhury, P. Roy; Samanta, C.; Basu, D. N. Affiliation:
AA(Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700 064, India), AB(Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700 064, India; Physics Department, Gottwald Science Center, University of Richmond, Richmond, VA 23173, United States), AC(Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700 064, India) Publication:
Atomic Data and Nuclear Data Tables, Volume 94, Issue 6, p. 781-806. Publication Date:
11/2008 Origin:
ELSEVIER Abstract Copyright:
(c) 2008 Elsevier Inc. DOI:
10.1016/j.adt.2008.01.003 Bibliographic Code:
2008ADNDT..94..781C

Abstract

Theoretical estimates for the half-lives of about 1700 isotopes of heavy elements with 100 <= Z <= 130 are tabulated using theoretical Q-values. The quantum mechanical tunneling probabilities are calculated within a WKB framework using microscopic nuclear potentials. The microscopic nucleus-nucleus potentials are obtained by folding the densities of interacting nuclei with a density-dependent M3Y effective nucleon-nucleon interaction. The alpha-decay half-lives calculated in this formalism using the experimental Q-values were found to be in good agreement over a wide range of experimental data spanning about 20 orders of magnitude. The theoretical Q-values used for the present calculations are extracted from three different mass estimates viz. Myers-Swiatecki, Muntian-Hofmann-Patyk-Sobiczewski, and Koura-Tachibana-Uno-Yamada.
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