Shell Effects in Superdeformed Minima

P.-H. Heenen (1) , J. Dobaczewski , W. Nazarewicz (2) , P. Bonche (3) , T. L Khoo (4)

1 ULB - Université libre de Bruxelles
2 Physics Department
3 SPhT - Service de Physique Théorique
4 ANL - Argonne National Laboratory [Lemont]

Recent experimental observation of the direct links between superdeformed and normal-deformed structures in the A∼190 mass region offers a unique information on the absolute nuclear binding energy in the 2:1 minima, and hence on the magnitude of shell effects in the superdeformed well. In the present paper, the self-consistent mean-field theory with density-dependent pairing interaction is used to explain at the same time the two-particle separation energies in the first and second wells, and the excitation energies of superdeformed states in the A∼190 and A∼240 mass regions.

Domaines: Physique Nucléaire Théorique [nucl-th]

P.-H. Heenen, J. Dobaczewski, W. Nazarewicz, P. Bonche, T. L Khoo. Shell Effects in Superdeformed Minima. Physical Review C, 1998, 57 (4), pp.1719-1726. ⟨10.1103/PhysRevC.57.1719⟩. ⟨cea-02928516⟩