https://doi.org/10.1140/epja/i2006-10066-0
Nuclear Structure and Reactions
Test of spin symmetry in anti-nucleon spectra
1
Institute of Theoretical Physics, Chinese Academy of Sciences, 100080, Beijing, PRC
2
Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, 730000, Lanzhou, PRC
3
School of Physics, Peking University, 100871, Beijing, PRC
4
Institute for Theoretical Physics, Justus-Liebig-University, 35392, Giessen, Germany
Received:
27
February
2006
Accepted:
27
June
2006
Published online:
7
July
2006
The spin symmetry in antinucleon spectra of a nucleus is tested by investigating the relations between the Dirac wave functions of the spin doublets and examining these relations in realistic nuclei within the relativistic mean-field model. In addition to the fact that the dominant components of the Dirac spinors of the spin doublet are nearly identical to each other, there is a differential relation between the smaller components which is found to be almost exactly fulfilled.
PACS: 14.20.-c Baryons (including antiparticles) – / 21.10.Hw Spin, parity, and isobaric spin – / 21.10.Pc Single-particle levels and strength functions – / 03.65.Ge Solutions of wave equations: bound states –
© Società Italiana di Fisica and Springer-Verlag, 2006
