The meaning of S-D dominance

Details The meaning of S-D dominance The meaning of S-D dominance

2004-07-28

arxiv.org/abs/nucl-th/0407100v1

Phys.Rev. C72 (2005) 024302

Physics

Nuclear Physics

Nuclear Theory

Are S and D pairs enough to describe deformed nuclei?

Scientific paper

10.1103/PhysRevC.72.024302

The dominance of S and D pairs in the description of deformed nuclei is one of the facts that provided sustain to the Interacting Boson Approximation. In Ref.(J. Dukelsky and S. Pittel, Phys. Rev. Lett. 86, 4791, 2001.), using an exactly solvable model with a repulsive pairing interaction between bosons it has been shown that the ground state is described almost completely in terms of S and D bosons. In the present paper we study the excited states obtained within this exactly solvable hamiltonian and show that in order to obtain a rotational spectra all the other degrees of freedom are needed.

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