par Jacquemin, Claude;Auger, Gérard;Quesne, Christiane
Référence Zeitschrift für Physik A Atoms and Nuclei, 309, 1, page (55-64)
Publication Publié, 1982-03
Article révisé par les pairs
Résumé : A method is developed to exactly calculate the fixed J quasiparticle centroid energies and partial widths. Some results obtained in the even-mass lead isotopes with various interactions are analysed. Fixed J quasiparticle distributions are used to predict an upper limit for the deviations between the quasiparticle approximation and the shell model results for the low-energy levels. The influence of the states with a high quasiparticle number in the low-energy region is seen to strongly depend upon the interaction. The importance of the dimensionalities and the internal widths in explaining the admixtures is stressed. © 1982 Springer-Verlag.