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Higher-shell corrections for systems with one and two valence nucleons: A spin-orbit and tensor interaction analysis

D. C. Zheng·L. Zamick·M. Fayache
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Abstract

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.

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D. C. Zheng, L. Zamick, M. Fayache. 1993-11-19. Higher-shell corrections for systems with one and two valence nucleons: A spin-orbit and tensor interaction analysis. https://arxiv.org/abs/nucl-th/9311016

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