Spin-dependent effective interactions for halo nuclei

Abstract

We discuss the spin-dependence of the effective two-body interactions appropriate for three-body computations. The only reasonable choice seems to be the fine and hyperfine interactions known for atomic electrons interacting with the nucleus. One exception is the nucleon-nucleon interaction imposing a different type of symmetry. We use the two-neutron halo nucleus 11Li as illustration. We demonstrate that models with the wrong spin-dependence are basically without predictive power. The Pauli forbidden core and valence states must be consistently treated.

TeX file, 6 pages, 3 postscript figures

References in corpus (8)

• The nucleon-nucleon interaction
• The Pauli principle in a three-body cluster model and the momentum distributions after fragmentation of 6He and 11Li
• The ${}^{10}$Li spectrum and the ${}^{11}$Li properties
• Three-body halos. III. Effects of finite core-spin
• Dipole excited states in ${}^{11}$Li with complex scaling
• Breakup Reactions of 11Li within a Three-Body Model
• Phase equivalent potentials for three-body halos
• Three-body Halos. IV. Momentum Distributions after Fragmentation

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