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dc.contributor.authorAlberto, P.-
dc.contributor.authorDe Castro, A. S.-
dc.contributor.authorMalheiro, M.-
dc.date.accessioned2014-05-27T11:28:38Z-
dc.date.accessioned2016-10-25T18:45:26Z-
dc.date.available2014-05-27T11:28:38Z-
dc.date.available2016-10-25T18:45:26Z-
dc.date.issued2013-03-04-
dc.identifierhttp://dx.doi.org/10.1103/PhysRevC.87.031301-
dc.identifier.citationPhysical Review C - Nuclear Physics, v. 87, n. 3, 2013.-
dc.identifier.issn0556-2813-
dc.identifier.issn1089-490X-
dc.identifier.urihttp://hdl.handle.net/11449/74795-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/74795-
dc.description.abstractWe derive the node structure of the radial functions which are solutions of the Dirac equation with scalar S and vector V confining central potentials, in the conditions of exact spin or pseudospin symmetry, i.e., when one has V=±S+C, where C is a constant. We show that the node structure for exact spin symmetry is the same as the one for central potentials which go to zero at infinity but for exact pseudospin symmetry the structure is reversed. We obtain the important result that it is possible to have positive energy bound solutions in exact pseudospin symmetry conditions for confining potentials of any shape, including naturally those used in hadron physics, from nuclear to quark models. Since this does not occur for potentials going to zero at large distances, which are used in nuclear relativistic mean-field potentials or in the atomic nucleus, this shows the decisive importance of the asymptotic behavior of the scalar and vector central potentials on the onset of pseudospin symmetry and on the node structure of the radial functions. Finally, we show that these results are still valid for negative energy bound solutions for antifermions. © 2013 American Physical Society.en
dc.language.isoeng-
dc.sourceScopus-
dc.titleSpin and pseudospin symmetries of the Dirac equation with confining central potentialsen
dc.typeoutro-
dc.contributor.institutionUniversity of Coimbra-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionCentro Técnico Aeroespacial-
dc.description.affiliationPhysics Department Centro de Física Computacional University of Coimbra, P-3004-516 Coimbra-
dc.description.affiliationDepartamento de Física e Química Universidade Estadual Paulista, 12516-410 Guaratinguetá, São Paulo-
dc.description.affiliationDepartamento de Física Instituto Tecnológico de Aeronáutica Centro Técnico Aeroespacial, 12228-900 Sao Jose dos Campos, São Paulo-
dc.description.affiliationUnespDepartamento de Física e Química Universidade Estadual Paulista, 12516-410 Guaratinguetá, São Paulo-
dc.identifier.doi10.1103/PhysRevC.87.031301-
dc.identifier.wosWOS:000315734500001-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofPhysical Review C: Nuclear Physics-
dc.identifier.scopus2-s2.0-84875193323-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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