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The Role of Ground State Correlations in the Single-Particle Strength of Odd Nuclei with Pairing

A. V. Avdeenkov·S. P. Kamerdzhiev
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Abstract

A method based on the consistent use of the Green function formalism has been developed to calculate the distribution of the single-particle strength in odd nuclei with pairing. The method takes into account the quasiparticle-phonon interaction, ground state correlations and a "refinement" of phenomenological single-particle energies and pairing gap values from the quasiparticle-phonon interaction under consideration. The calculations for 121Sn and 119Sn that were performed in the quasiparticle$\otimes$phonon approximation, have shown a reasonable agreement with experiment. The ground state correlations play a noticeable role and mostly improve the agreement with experiment or shift the results to the right direction.

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A. V. Avdeenkov, S. P. Kamerdzhiev. 2000-06-14. The Role of Ground State Correlations in the Single-Particle Strength of Odd Nuclei with Pairing. https://doi.org/10.1016/s0370-2693(99)00719-4

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