Alpha Decay Hindrance Factors: A Probe of Mean Field Wave Functions

Abstract

A simple model to calculate alpha-decay Hindrance Factors is presented. Using deformation values obtained from PES calculations as the only input, Hindrance Factors for the alpha-decay of Rn- and Po-isotopes are calculated. It is found that the intrinsic structure around the Fermi surface determined by the deformed mean field plays an important role in determining the hindrance of alpha-decay. The fair agreement between experimental and theoretical Hindrance Factors suggest that the wave function obtained from the energy minima of the PES calculations contains an important part of the correlations that play a role for the alpha-decay. The calculated HF that emerges from these calculations render a different interpretation than the commonly assumed n-particle n-hole picture.

7 pages, 9 figures

References in corpus (4)

• Systematics of proton emission
• Shape Coexistence in Pb186: Beyond-mean-field description by configuration mixing of symmetry restored wave functions
• Unveiling the origin of shape coexistence in lead isotopes
• Prolate dominance of nuclear shape caused by a strong interference between the effects of spin-orbit and l^2 terms of the Nilsson potential

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• Nuclear shape coexistence in Po isotopes: An interacting boson model study
• Global calculations on the microscopic energies and nuclear deformations: Isospin dependence of the spin-orbit coupling
• The single-particle unit for alpha decay