Antinucleon spectra in the Dirac equation with scalar and vector Wood-Saxon potentials

Journal Article · Wed Jun 03 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3157820· OSTI ID:21316781

Lisboa, R; Malheiro, M ^[1]; Alberto, P ^[2]; Castro, A S. de ^[3]

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1. Instituto Tecnologico de Aeronautica, CTA, Sao Jose dos Campos, Sao Paulo 12-228-900 (Brazil)
2. Departamento de Fisica e Centro de Fisica Computacional, Universidade de Coimbra, P-3004-516 Coimbra (Portugal)
3. Departamento de Fisica e Quimica, Universidade Estadual Paulista, 12516-410 Guaratingueta, Sao Paulo (Brazil)

We analyze here the spin and pseudospin symmetry for the antinucleon spectra solving the Dirac equation with scalar and vector Wood-Saxon potentials. In relativistic nuclear mean field theories where these potentials have large magnitudes and opposite signs we show that contrary to the nucleon case where pseudospin interaction is never very small and cannot be treated perturbatively, for antinucleon systems this interaction is perturbative and an exact pseudospin symmetry is possible. This result manifests the relativistic nature of the nuclear pseudospin symmetry.

• OSTI ID: 21316781
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1139; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTINUCLEONS
DIRAC EQUATION
MEAN-FIELD THEORY
NUCLEAR MATTER
SPIN
SYMMETRY
WOODS-SAXON POTENTIAL