Suppression of core polarization in halo nuclei

Preprint

11 March 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-th/9607008

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.

Keywords

All Related Versions

Version 1, 1996-07-04, ArXiv
Version 2, 1997-03-11, ArXiv
Published version: Physical Review Letters, 78 (14), 2708.

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