Predictions of alpha-decay half-lives based on potentials from self-consistent mean-field models

Details Predictions of alpha-decay half-lives based on potentials from self-consistent mean-field models Predictions of alpha-decay half-lives based on potentials from self-consistent mean-field models

2005-12-12

arxiv.org/abs/nucl-th/0512041v1

Nucl.Phys. A767 (2006) 81-91

Physics

Nuclear Physics

Nuclear Theory

latex, 15 pages, 4 eps figures, accepted for publication in Nucl. Phys. A

Scientific paper

10.1016/j.nuclphysa.2005.12.009

We present a microscopic model for the calculation of alpha-decay half lives employing potentials obtained from relativistic and non-relativistic self-consistent mean-field models. The nuclear and Coulomb potentials are used to obtain the tunneling probability and, in one model variant, also the knocking frequency. The model contains only one parameter. We compare this approach employing several modern mean-field parametrizations to experimental data and to the semi-empirical Viola-Seaborg systematics. We extrapolate our model to superheavy nuclei where assumptions entering semi-empirical approaches might lose validity.

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