dorsal/arxiv
View SchemaTensor coupling and pseudospin symmetry in nuclei
| Authors | P. Alberto, R. Lisboa, M. Malheiro, A. S. de Castro |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0411120 |
| URL | https://arxiv.org/abs/nucl-th/0411120 |
| DOI | 10.1103/PhysRevC.71.034313 |
| Journal | Phys.Rev. C71 (2005) 034313 |
Abstract
In this work we study the contribution of the isoscalar tensor coupling to the realization of pseudospin symmetry in nuclei. Using realistic values for the tensor coupling strength, we show that this coupling reduces noticeably the pseudospin splittings, especially for single-particle levels near the Fermi surface. By using an energy decomposition of the pseudospin energy splittings, we show that the changes in these splittings come by mainly through the changes induced in the lower radial wave function for the low-lying pseudospin partners, and by changes in the expectation value of the pseudospin-orbit coupling term for surface partners. This allows us to confirm the conclusion already reached in previous studies, namely that the pseudospin symmetry in nuclei is of a dynamical nature.
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"abstract": "In this work we study the contribution of the isoscalar tensor coupling to\nthe realization of pseudospin symmetry in nuclei. Using realistic values for\nthe tensor coupling strength, we show that this coupling reduces noticeably the\npseudospin splittings, especially for single-particle levels near the Fermi\nsurface. By using an energy decomposition of the pseudospin energy splittings,\nwe show that the changes in these splittings come by mainly through the changes\ninduced in the lower radial wave function for the low-lying pseudospin\npartners, and by changes in the expectation value of the pseudospin-orbit\ncoupling term for surface partners. This allows us to confirm the conclusion\nalready reached in previous studies, namely that the pseudospin symmetry in\nnuclei is of a dynamical nature.",
"arxiv_id": "nucl-th/0411120",
"authors": [
"P. Alberto",
"R. Lisboa",
"M. Malheiro",
"A. S. de Castro"
],
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"nucl-th"
],
"doi": "10.1103/PhysRevC.71.034313",
"journal_ref": "Phys.Rev. C71 (2005) 034313",
"title": "Tensor coupling and pseudospin symmetry in nuclei",
"url": "https://arxiv.org/abs/nucl-th/0411120"
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