Spin and pseudospin symmetries in the antinucleon spectrum of nuclei

Lisboa, Ronai Machado; Malheiro, M.; Alberto, P.; Fiolhais, M.; Castro, A. S.

Spin and pseudospin symmetries in the antinucleon spectrum of nuclei

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dc.contributor.author	Lisboa, Ronai Machado
dc.contributor.author	Malheiro, M.
dc.contributor.author	Alberto, P.
dc.contributor.author	Fiolhais, M.
dc.contributor.author	Castro, A. S.
dc.date.accessioned	2020-12-11T14:15:39Z
dc.date.available	2020-12-11T14:15:39Z
dc.date.issued	2010-06-28
dc.description.resumo	Spin 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	pt_BR
dc.identifier.citation	LISBOA, R.; MALHEIRO, M.; ALBERTO, P.; FIOLHAIS, M.; CASTRO, A. S. de. Spin and pseudospin symmetries in the antinucleon spectrum of nuclei. Physical Review C, [S.L.], v. 81, n. 6, p. 0643241-0643248, 28 jun. 2010. Disponível em: https://journals.aps.org/prc/abstract/10.1103/PhysRevC.81.064324. Acesso em: 30 set. 2020. http://dx.doi.org/10.1103/physrevc.81.064324.	pt_BR
dc.identifier.doi	10.1103/PhysRevC.81.064324
dc.identifier.issn	2469-9985
dc.identifier.issn	2469-9993
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/30956
dc.language	en	pt_BR
dc.publisher	American Physical Society	pt_BR
dc.subject	Spin symmetries	pt_BR
dc.subject	Pseudospin symmetries	pt_BR
dc.subject	Antinucleon spectrum	pt_BR
dc.title	Spin and pseudospin symmetries in the antinucleon spectrum of nuclei	pt_BR
dc.type	article	pt_BR