Algebraic Solutions of an Extended Pairing Model for Well-Deformed Nuclei

Details Algebraic Solutions of an Extended Pairing Model for Well-Deformed Nuclei Algebraic Solutions of an Extended Pairing Model for Well-Deformed Nuclei

2003-11-21

arxiv.org/abs/nucl-th/0311075v1

Phys.Rev.Lett. 92 (2004) 112503

Physics

Nuclear Physics

Nuclear Theory

6 pages, 3 graphs, 1 table, revtex style

Scientific paper

10.1103/PhysRevLett.92.112503

A Nilsson mean-field plus extended pairing interaction Hamiltonian with many-pair interaction terms is proposed. Eigenvalues of the extended pairing model are easy to obtain. Our investigation shows that one- and two-body interactions continue to dominate the dynamics for relatively small values of the pairing strength. As the strength of the pairing interaction grows, however, the three- and higher many-body interaction terms grow in importance. A numerical study of even-odd mass differences in the $^{154-171}$Yb isotopes shows that the extended pairing model is applicable to well-deformed nuclei.

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