Isospin Asymmetry in the Pseudospin Dynamical Symmetry

2000/11/30 by P. Alberto, M. Fiolhais, M. Malheiro +2 · 2 citations
Physics and Astronomy · #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #Quantum Mechanics and Non-Hermitian Physics #nucl-th

paper · pdf · doi:10.1103/physrevlett.86.5015

published as Phys.Rev.Lett. 86 (2001) 5015-5018 · 4 pages, 2 figures, uses revtex4 macros. It has one less figure than previous version and some minor corrections. To be published in the issue of 28 May 2001 of Physical Review Letters

arxiv created 2001/05/25 · openalex publication_date 2001/05/28 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Pseudospin symmetry in nuclei is investigated considering the Dirac equation with a Lorentz structured Woods-Saxon potential. The isospin correlation of the energy splittings of pseudospin partners with the nuclear potential parameters is studied. We show that, in an isotopic chain, the pseudospin symmetry is better realized for neutrons than for protons. This behavior comes from balance effects among the central nuclear potential parameters. In general, we found an isospin asymmetry of the nuclear pseudospin interaction, opposed to the nuclear spin-orbit interaction which is quasi-isospin symmetric.

Citations

• Pseudospin as a Relativistic Symmetry
• Pseudospin symmetry in Zr and Sn isotopes from the proton drip line to the neutron drip line
• On the relativistic L - S coupling

Cited by

• Role of the Coulomb and the vector-isovector ρ potentials in the isospin asymmetry of nuclear pseudospin
• Recent progresses on the pseudospin symmetry in single particle resonant states