Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1993-11-19
Physics
Nuclear Physics
Nuclear Theory
17 text pages and 2 PostScript figures (available upon request). Preprint No. unassigned
Scientific paper
It is shown that when higher-shell admixtures are included for systems with two valence particles or holes, there are effects which are quite different from those for one-valence-nucleon systems. For example, for nuclei with one valence particle or hole, there is no first-order correction for the magnetic dipole moment or the Gamow-Teller transition amplitude. However for nuclei with two valence particles or holes, one can get substantial corrections. The effects of the tensor and spin-orbit interactions in core renormalization are emphasized. We find that in 6Li, the spin-orbit interaction causes the quadrupole moment of the J=1+ ground state to be positive, but the tensor interaction causes it to be negative. The G-matrices derived from realistic interactions are employed in these calculations.
Fayache M.
Zamick Larry
Zheng Dao-Chen
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