Spin Symmetry in the Antinucleon Spectrum

Shan-Gui Zhou, Jie Meng, and P. Ring
Phys. Rev. Lett. 91, 262501 – Published 29 December 2003

Abstract

We discuss spin and pseudospin symmetry in the spectrum of single nucleons and single antinucleons in a nucleus. As an example we use relativistic mean field theory to investigate single antinucleon spectra. We find a very well developed spin symmetry in single antineutron and single antiproton spectra. The dominant components of the wave functions of the spin doublet are almost identical. This spin symmetry in antiparticle spectra and the pseudospin symmetry in particle spectra have the same origin. However, it turns out that the spin symmetry in antinucleon spectra is much better developed than the pseudospin symmetry in normal nuclear single particle spectra.

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  • Received 17 April 2003

DOI:https://doi.org/10.1103/PhysRevLett.91.262501

©2003 American Physical Society

Authors & Affiliations

Shan-Gui Zhou1,2,3,4, Jie Meng1,3,4, and P. Ring5

  • 1School of Physics, Peking University, Beijing 100871, China
  • 2Max-Planck-Institut für Kernphysik, 69029 Heidelberg, Germany
  • 3Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 4Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China
  • 5Physikdepartment, Technische Universität München, 85748 Garching, Germany

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Issue

Vol. 91, Iss. 26 — 31 December 2003

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