ar X iv : n uc l - th / 0 10 70 66 v 1 2 5 Ju l 2 00 1 MANY - BODY THEORY AT EXTREME ISOSPIN

نویسندگان

  • H. LENSKE
  • C. M. KEIL
چکیده

The structure of nuclei far off β-stability is investigated by nuclear many-body theory. In-medium interactions for asymmetric nuclear matter are obtained by (Dirac-) Brueckner theory thus establishing the link of nuclear forces to free space interactions. HFB and RPA theory is used to describe ground and excited states of nuclei from light to heavy masses. In extreme dripline systems pairing and core polarization are found to be most important for the binding, especially of halo nuclei. The calculations show that far off stability mean-field dynamics is gradually replaced by dynamical correlations, giving rise to the dissolution of shell structures.

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منابع مشابه

ar X iv : n uc l - th / 0 00 70 34 v 1 1 4 Ju l 2 00 0 June 2000 Annual Report for the Department of Energy : 2000 Nuclear Theory Group University of Washington

This document is a summary of the physics research carried out by the Nuclear Theory Group at the University of Washington during the last twelve-month period.

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ar X iv : n uc l - th / 0 10 70 40 v 1 1 3 Ju l 2 00 1 Isospin and Z 1 / 3 Dependence of the Nuclear Charge Radii

Based on the systematic investigation of the data available for A ≥ 40, a Z 1/3 dependence for the nuclear charge radii is shown to be superior to the generally accepted A 1/3 law. A delicate scattering of data around R c /Z 1/3 is infered as owing to the isospin effect and a linear dependence of R c /Z 1/3 on N/Z (or (N − Z)/2) is found. This inference is well supported by the microscopic Rela...

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تاریخ انتشار 2001