Cluster Model Calculation on the Energy Levels of the Lithium Isotopes
Physical Review1961Vol. 123(2), pp. 548–558
Citations Over TimeTop 10% of 1961 papers
Abstract
A variational procedure is adopted to determine the energies of the levels of the highest space symmetry type in ${\mathrm{Li}}^{6}$ and ${\mathrm{Li}}^{7}$. The trial wave functions employed take into consideration the existence of cluster structures in those nuclei. With a simple two-body force, it is shown that the computed energies of the various states are in reasonable agreement with experiment. The $^{2}F_{\frac{5}{2}}$ level in ${\mathrm{Li}}^{7}$, as yet undetermined experimentally, is found to have an excitation energy of about 5.6 Mev and a rather large level width. The calculation also indicates that to explain the splitting of levels in those nuclei, a constant two-body spin-orbit force of the pure neutral form is inadequate.
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