Spin and pseudospin symmetries in the antinucleon spectrum of nuclei

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dc.contributor.authorLisboa, R.
dc.contributor.authorMalheiro, M.
dc.contributor.authorAlberto, P.
dc.contributor.authorFiolhais, M.
dc.contributor.authorde Castro, A. S. [UNESP]
dc.contributor.institutionUniversidade Federal do Rio Grande do Norte (UFRN)
dc.contributor.institutionCtr Tecn Aeroesp
dc.contributor.institutionUniv Coimbra
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:27:51Z
dc.date.available2014-05-20T13:27:51Z
dc.date.issued2010-06-28
dc.description.abstractSpin and pseudospin symmetries in the spectra of nucleons and antinucleons are studied in a relativistic mean-field theory with scalar and vector Woods-Saxon potentials, in which the strength of the latter is allowed to change. We observe that, for nucleons and antinucleons, the spin symmetry is of perturbative nature and it is almost an exact symmetry in the physical region for antinucleons. The opposite situation is found in the pseudospin symmetry case, which is better realized for nucleons than for antinucleons, but is of dynamical nature and cannot be viewed in a perturbative way for either nucleons or antinucleons. This is shown by computation of the spin-orbit and pseudospin-orbit couplings for selected spin and pseudospin partners in both spectra.en
dc.description.affiliationUniv Fed Rio Grande do Norte, Escola Ciencias & Tecnol, BR-59014615 Natal, RN, Brazil
dc.description.affiliationCtr Tecn Aeroesp, Dept Fis, Inst Tecnol Aeronaut, BR-12228900 São Paulo, Brazil
dc.description.affiliationUniv Coimbra, Dept Fis, P-3004516 Coimbra, Portugal
dc.description.affiliationUniv Coimbra, Ctr Fis Computac, P-3004516 Coimbra, Portugal
dc.description.affiliationUniv Estadual Paulista, Dept Quim & Fis, BR-12516410 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim & Fis, BR-12516410 São Paulo, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFCT
dc.description.sponsorshipIdCAPES: 183/07
dc.description.sponsorshipIdFCT: PTDC/FIS/64707/2006
dc.description.sponsorshipIdFCT: CERN/FP/83505/2008
dc.format.extent8
dc.identifierhttp://dx.doi.org/10.1103/PhysRevC.81.064324
dc.identifier.citationPhysical Review C. College Pk: Amer Physical Soc, v. 81, n. 6, p. 8, 2010.
dc.identifier.doi10.1103/PhysRevC.81.064324
dc.identifier.fileWOS000279267100001.pdf
dc.identifier.issn0556-2813
dc.identifier.lattes5811700083195480
dc.identifier.urihttp://hdl.handle.net/11449/9234
dc.identifier.wosWOS:000279267100001
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review C
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleSpin and pseudospin symmetries in the antinucleon spectrum of nucleien
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmer Physical Soc
unesp.author.lattes5811700083195480[5]
unesp.author.orcid0000-0001-8802-8806[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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Artigos - Física e Química - FEG