New insight on pseudospin doublets in nuclei

Details New insight on pseudospin doublets in nuclei New insight on pseudospin doublets in nuclei

2009-04-02

arxiv.org/abs/0904.0341v1

Physics

Nuclear Physics

Nuclear Theory

27 pages, 18 figures

Scientific paper

The relevance of the pseudospin symmetry in nuclei is considered. New insight is obtained from looking at the continuous transition from a model satisfying the spin symmetry to another one satisfying the pseudospin symmetry. This study suggests that there are models allowing no missing single-particle states in this transition, contrary to what is usually advocated. It rather points out to an association of pseudospin partners different from the one usually assumed, together with a strong violation of the corresponding symmetry. A comparison with results obtained from some relativistic approaches is made.

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