Suppression of Core Polarization in Halo Nuclei

T. T. S. Kuo, F. Krmpotić, and Y. Tzeng
Phys. Rev. Lett. 78, 2708 – Published 7 April 1997
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Abstract

Halo nuclei are studied using a G-matrix interaction derived 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 6He and 11Li 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.

  • Received 18 June 1996

DOI:https://doi.org/10.1103/PhysRevLett.78.2708

©1997 American Physical Society

Authors & Affiliations

T. T. S. Kuo1, F. Krmpotić2, and Y. Tzeng3

  • 1Department of Physics, SUNY-Stony Brook, Stony Brook, New York 11794
  • 2Departamento de Fisica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C. C. 67, 1900 La Plata, Argentina
  • 3Institute of Physics, Academia Sinica, Nankang, Taipei, Taiwan

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Vol. 78, Iss. 14 — 7 April 1997

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