Pseudo-spin as a relativistic symmetry
Y.K. Gambhir - J.P. Maharana - C.S. Warke
Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, INDIA
Received: 16 April 1998 / Revised version: 26 June 1998 Communicated by P. Schuck
Abstract
The existence of broken pseudo-spin symmetry in the Pb
nucleus has been studied in the relativistic mean field approach using
realistic Lagrangian parameters. Its relationship to spin orbit splitting
and the vanishingly small surface delta character of the mean spin orbit
potential are investigated.
In the 208Pb nucleus the broken pseudo-spin doublets are found to
exist above the neutron (proton) Fermi surfaces.
PACS
21.60.Cs Shell model -
21.10.-k Properties of nuclei; nuclei energy levels -
21.30 Nuclear forces
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