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Title: Tensor coupling and pseudospin symmetry in nuclei

Abstract

In this work we study the contribution of the isoscalar tensor coupling to the realization of pseudospin symmetry in nuclei. Using realistic values for the tensor coupling strength, we show that this coupling reduces noticeably the pseudospin splittings, especially for single-particle levels near the Fermi surface. By using an energy decomposition of the pseudospin energy splittings, we show that the changes in these splittings come mainly through the changes induced in the lower radial wave function for the low-lying pseudospin partners and through changes in the expectation value of the pseudospin-orbit coupling term for surface partners. This allows us to confirm the conclusion already reached in previous studies, namely that the pseudospin symmetry in nuclei is of a dynamical nature.

Authors:
;  [1];  [2];  [2]
  1. Departamento de Fisica and Centro de Fisica Computacional, Universidade de Coimbra, P-3004-516 Coimbra (Portugal)
  2. Instituto de Fisica, Universidade Federal Fluminense, 24210-340 Niteroi (Brazil)
Publication Date:
OSTI Identifier:
20695994
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 71; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevC.71.034313; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; EXPECTATION VALUE; FERMI LEVEL; L-S COUPLING; NUCLEI; SPIN; SYMMETRY; TENSORS; WAVE FUNCTIONS

Citation Formats

Alberto, P, Castro, A.S. de, Departamento de Fisica e Quimica, Universidade Estadual Paulista, 12516-410 Guaratingueta, SP, Lisboa, R, Malheiro, M, and Departamento de Fisica, Instituto Tecnologico de Aeronautica, CTA, 12228-900, Sao Jose dos Campos. Tensor coupling and pseudospin symmetry in nuclei. United States: N. p., 2005. Web. doi:10.1103/PhysRevC.71.034313.
Alberto, P, Castro, A.S. de, Departamento de Fisica e Quimica, Universidade Estadual Paulista, 12516-410 Guaratingueta, SP, Lisboa, R, Malheiro, M, & Departamento de Fisica, Instituto Tecnologico de Aeronautica, CTA, 12228-900, Sao Jose dos Campos. Tensor coupling and pseudospin symmetry in nuclei. United States. https://doi.org/10.1103/PhysRevC.71.034313
Alberto, P, Castro, A.S. de, Departamento de Fisica e Quimica, Universidade Estadual Paulista, 12516-410 Guaratingueta, SP, Lisboa, R, Malheiro, M, and Departamento de Fisica, Instituto Tecnologico de Aeronautica, CTA, 12228-900, Sao Jose dos Campos. 2005. "Tensor coupling and pseudospin symmetry in nuclei". United States. https://doi.org/10.1103/PhysRevC.71.034313.
@article{osti_20695994,
title = {Tensor coupling and pseudospin symmetry in nuclei},
author = {Alberto, P and Castro, A.S. de and Departamento de Fisica e Quimica, Universidade Estadual Paulista, 12516-410 Guaratingueta, SP and Lisboa, R and Malheiro, M and Departamento de Fisica, Instituto Tecnologico de Aeronautica, CTA, 12228-900, Sao Jose dos Campos},
abstractNote = {In this work we study the contribution of the isoscalar tensor coupling to the realization of pseudospin symmetry in nuclei. Using realistic values for the tensor coupling strength, we show that this coupling reduces noticeably the pseudospin splittings, especially for single-particle levels near the Fermi surface. By using an energy decomposition of the pseudospin energy splittings, we show that the changes in these splittings come mainly through the changes induced in the lower radial wave function for the low-lying pseudospin partners and through changes in the expectation value of the pseudospin-orbit coupling term for surface partners. This allows us to confirm the conclusion already reached in previous studies, namely that the pseudospin symmetry in nuclei is of a dynamical nature.},
doi = {10.1103/PhysRevC.71.034313},
url = {https://www.osti.gov/biblio/20695994}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 3,
volume = 71,
place = {United States},
year = {Tue Mar 01 00:00:00 EST 2005},
month = {Tue Mar 01 00:00:00 EST 2005}
}