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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Pseudospin symmetry in Zr and Sn isotopes from the proton drip line to the neutron drip line
Physical Review C - Nuclear Physics, Volume 59, No. 1, Year 1999
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Description
Based on the relativistic continuum Hartree-Bogoliubov theory, the pseudospin approximation in exotic nuclei is investigated in Zr and Sn isotopes from the proton drip line to the neutron drip line. The quality of the pseudospin approximation is shown to be connected to the competition between the pseudocentrifugal barrier and the pseudospin orbital potential (PSOP). The PSOP depends on the derivative of the difference between the scalar and vector potentials [Formula Presented] If [Formula Presented] the pseudospin symmetry is exact. The pseudospin symmetry is found to be a good approximation for normal nuclei and to become much better for exotic nuclei with a highly diffuse potential, which have [Formula Presented] The energy splitting of the pseudospin partners is smaller for orbitals near the Fermi surface (even in the continuum) than the deeply bound orbitals. The lower components of the Dirac wave functions for the pseudospin partners are very similar and almost equal in magnitude. © 1999 The American Physical Society.
Authors & Co-Authors
Meng, Jie
China, Beijing
Peking University
Japan, Wako
Riken the Institute of Physical and Chemical Research
China, Beijing
Chinese Academy of Sciences
Arima, Akito
Japan, Wako
Riken the Institute of Physical and Chemical Research
Statistics
Citations: 297
Authors: 2
Affiliations: 4
Identifiers
Doi:
10.1103/PhysRevC.59.154
ISSN:
05562813