Correlation Energies By The Projected Generator Coordinate Method

摘要

The self-consistent mean-field method has been proved to be a powerful computational approach to a quantum theory of nuclear binding energies. This success was possible by including phenomenological corrections for beyond mean-field effects related to fluctuations around the mean-field solution. Starting from the Skyrme mean-field approach, we present a systematic microscopic calculation of the quadrupole correlation energy within a particle-number and angular-momentum projected generator coordinate method. Applying the method to even-even nuclei of known binding energies, we find a significant improvement of the systematics of binding energies near shell closures.