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Suppression of core polarization in halo nuclei

T. T. S. Kuo·F. Krmpotic·Y. Tzeng
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Abstract

We present a microscopic study of halo nuclei, starting from the Paris and Bonn potentials and employing a two-frequency shell model approach. It is found that the core-polarization effect is dramatically suppressed in such nuclei. Consequently the effective interaction for halo nucleons is almost entirely given by the bare G-matrix alone, which presently can be evaluated with a high degree of accuracy. The experimental pairing energies between the two halo neutrons in $^6$He and $^{11}$Li nuclei are satisfactorily reproduced by our calculation. It is suggested that the fundamental nucleon-nucleon interaction can be probed in a clearer and more direct way in halo nuclei than in ordinary nuclei.

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T. T. S. Kuo, F. Krmpotic, Y. Tzeng. 1997-03-11. Suppression of core polarization in halo nuclei. https://doi.org/10.1103/physrevlett.78.2708

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