Toward a better parameterization of nuclear density for α-decay calculation
| Autor: | M. Ismail, A. R. Abdulghany, A. Adel, A. Y. Ellithi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Nuclear and High Energy Physics Isotope 010308 nuclear & particles physics Nuclear Theory Radius 01 natural sciences symbols.namesake medicine.anatomical_structure Neutron number 0103 physical sciences medicine symbols Fermi–Dirac statistics Atomic physics Nuclear Experiment 010306 general physics Nucleus Nuclear density |
| Zdroj: | Nuclear Physics A. 947:64-75 |
| ISSN: | 0375-9474 |
| DOI: | 10.1016/j.nuclphysa.2015.12.008 |
| Popis: | Starting from three-parameter Fermi distribution of nuclear densities, we used two formulas, for calculating the half-density radius, to study the effect of variation of radius of daughter nucleus on both α -decay half-life and α -preformation factor. We compared the results of the aforementioned two formulas with the corresponding results obtained from the nuclear densities of Hartree–Fock calculation derived from the BSk2 Skyrme force. We considered >60 isotopes of Po and Rn α -emitter elements and studied the variation of half-life and preformation factor with density parameters. We found that the variation of density parameters of daughter nuclei highly affects the calculated half-life and the extracted value of preformation factor, but the behavior of these two quantities with variation of parent neutron number is almost independent of the density parameters. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect