Radii and Binding Energies of Nuclei from a Model of the pn-pair Interactions

Details Radii and Binding Energies of Nuclei from a Model of the pn-pair Interactions Radii and Binding Energies of Nuclei from a Model of the pn-pair Interactions

2005-08-13

arxiv.org/abs/nucl-th/0508026v1

Physics

Nuclear Physics

Nuclear Theory

Latex2e 2.09, 13 pages, 2 figures, submitted to the Modern Physics Letters A

Scientific paper

New formulas to calculate the nuclear charge radii and the nuclear binding energies have been derived in the framework of an alpha-cluster model. The particular features of the model are two assumptions that the proton-neutron pair interactions are responsible for adherence between alpha-clusters and that the proton and the neutron from a proton-neutron pair have equal nuclear potentials. These assumptions allow one to determine the charge and Coulomb radii in dependence on the amount of proton-neutron pairs in the nucleus. Unlike the Weizsacker's formula to calculate nuclear binding energies, in the model the binding energies of alpha-clusters and excess neutrons are estimated separately. The calculated values are in a good agreement with the experimental data.

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