Alpha-decay lifetimes semiempirical relationship including shell effects

Abstract

A new version of the semiempirical formula based on fission approach of alpha decay is derived, by using the optimum values of the fitting parameters determined for even-even nuclei, combined with hindrance factors for even-odd, odd-even, and odd-odd nuclides. The deviations from experimental data for two regions of nuclear chart (493 alpha emitters with Z=52-118 and 142 transuranium nuclei including superheavies (Z=92-118), respectively) are compared with those obtained by using the universal curve and the Viola-Seaborg semiempirical relationship.

11 pages, 3 figures, revtex4

References in corpus (2)

• alpha-nucleus potentials, alpha-decay half-lives, and shell closures for superheavy nuclei
• Alpha decay half-lives of new superheavy elements

Cited by in corpus (10)

• Alpha decay calculations with a new formula
• Systematic study of $\alpha$ decay for isomer related nuclei within a two-potential approach
• Abrupt changes in alpha decay systematics as a manifestation of collective nuclear modes
• A new empirical formula for α-decay half-life and decay chains of Z=120 isotopes
• Feasibility of observing the α decay chains from isotopes of SHN with Z = 128, Z = 126, Z = 124 and Z = 122
• $\alpha$-decay properties of even-even superheavy nuclei
• Predictions on the alpha decay chains of superheavy nuclei with Z =121 within the range 290 $\le$ A $\le$ 339
• Theoretical studies on structural properties and decay modes of ${}^{284-375}$119 isotopes
• Theoretical Investigation of α-decay in Heavy and Superheavy Isomers
• Unearthing radial independence for prediction of alpha-decay half-lives