arXiv:nucl-th/0305053·v1·Nuclear Theory
Spin-dependent effective interactions for halo nuclei
E. Garrido (1) · D.V. Fedorov (2) · A.S. Jensen (2) ((1) IEM-CSIC · Madrid (Spain) · (2) IFA-Aarhus University (Denmark))
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.
Comments: TeX file, 6 pages, 3 postscript figures