Elsevier

Physics Letters B

Volume 72, Issue 1, 5 December 1977, Pages 37-40
Physics Letters B

A semi-empirical correlation energy for nuclei

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Abstract

A semi-empirical interaction is used to calculate higher order corrections to the binding energies of even—even nuclei close to the line of stability. These corrections are taken to come from two phonon configurations and are treated as a perturbation with respect to the BCS nuclear ground state which is obtained from applying the energy density method to finite nuclei. The overall correspondence between theory and experiment for the 60 nuclei calculated between A =52 and A =234 is good, with excellent agreement for the non-deformed nuclei situated within the regions A = 72 to 144 and A = 200 to 212. The large correction enegies (several MeV per nucleus on the average) indicate that these correlations are of importance for explaining nuclear binding energies and that it is necessary to include them within energy functional itself. The fact that these correlations come almost exclusively from nucleons close to the fermi surface is also discussed.

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Cited by (1)

Laboratoire associé au C.N.R.S.

McGill University, Montréal, Québec, Canada; Dawson College, Montréal, Québec, Canada.

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