Nuclear Half-Lives for Alpha Radioactivity of Elements with 100 $\leq$ Z $\leq$ 130

Chowdhury, P. Roy; Samanta, C.; Basu, D. N.

Nuclear Half-Lives for Alpha Radioactivity of Elements with 100 $\leq$ Z $\leq$ 130

Authors

Chowdhury, P. Roy

Samanta, C.

Basu, D. N.

Description

Theoretical estimates for the half lives of about 1700 isotopes of heavy elements with Z from 100 to 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 (DDM3Y) 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 twenty orders of magnitude. The theoretical Q-values used for the present calculations are extracted from three different mass estimates viz. Myers-Swiatecki [MS], Muntian-Hofmann-Patyk-Sobiczewski [M] and Koura-Tachibana-Uno-Yamada [KUTY].
57 pages, 2 tables, 1 figure