Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism

Lisboa, Ronai Machado; Alberto, P.; Carlson, B. V.; Malheiro, M.

Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism

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dc.contributor.author	Lisboa, Ronai Machado
dc.contributor.author	Alberto, P.
dc.contributor.author	Carlson, B. V.
dc.contributor.author	Malheiro, M.
dc.date.accessioned	2020-12-11T13:40:05Z
dc.date.available	2020-12-11T13:40:05Z
dc.date.issued	2017
dc.description.resumo	We present finite-temperature Dirac-Hartree-Bogoliubov (FTDHB) calculations for the tin isotope chain to study the dependence of pseudospin on the nuclear temperature. In the FTDHB calculation, the density dependence of the self-consistent relativistic mean fields, the pairing, and the vapor phase that takes into account the unbound nucleon states are considered self-consistently. The mean-field potentials obtained in the FTDHB calculations are fit by Woods-Saxon (WS) potentials to examine how the WS parameters are related to the energy splitting of the pseudospin pairs as the temperature increases. We find that the nuclear potential surface diffuseness is the main driver for the pseudospin splittings and that it increases as the temperature grows. We conclude that pseudospin symmetry is better realized when the nuclear temperature increases. The results confirm the findings of previous works using relativistic mean field theory at T = 0, namely that the correlation between the pseudospin splitting and the parameters of the Woods-Saxon potentials implies that pseudospin symmetry is a dynamical symmetry in nuclei. We show that the dynamical nature of the pseudospin symmetry remains when the temperature is considered in a realistic calculation of the tin isotopes, such as that of the Dirac-Hartree-Bogoliubov formalism	pt_BR
dc.identifier.citation	LISBOA, R.; ALBERTO, P.; CARLSON, B. V.; MALHEIRO, M.. Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism. Physical Review C, [S.L.], v. 96, n. 5, p. 054306-054306, 8 nov. 2017. Disponível em: https://journals.aps.org/prc/abstract/10.1103/PhysRevC.96.054306. Acesso em: 30 set. 2020. http://dx.doi.org/10.1103/physrevc.96.054306.	pt_BR
dc.identifier.doi	10.1103/PhysRevC.96.054306
dc.identifier.issn	2469-9985
dc.identifier.issn	2469-9993
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/30953
dc.language	pt_BR	pt_BR
dc.publisher	American Physical Society	pt_BR
dc.subject	Temperature effects	pt_BR
dc.subject	Nuclear pseudospin symmetry	pt_BR
dc.subject	Dirac-Hartree-Bogoliubov formalism	pt_BR
dc.title	Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism	pt_BR
dc.type	article	pt_BR