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The neutron-halo nuclei, 11Li, 14Be, and 17B, are studied in the three-body model. The Yukawa interaction is used to describe the interaction of the two-body subsystem. For given parameters of the twobody interaction, the properties of these neutron-halo nuclei are calculated with the Faddeev equations and the results are compared with those in the variational method. It is shown that the method of the Faddeev equations is more accurate. Then the dependencies of the two-and three-body energies on the parameters are studied. We find numerically that two-and three-body correlations differ greatly from each other with the variation of the intrinsic force range.
The neutron-halo nuclei, 11Li, 14Be, and 17B, are studied in the three-body model. The Yukawa interaction is used to describe the interaction of the two-body subsystem. For given parameters of the twobody interaction, the properties of these neutron-halo nuclei are calculated with the Faddeev equations and the results are compared with those in the variational method. It is shown that the method of the Faddeev equations is more accurate. Then the dependencies of the two- and three-body energies on the parameters are studied. We find numerically that two-and three-body correlations differ greatly from each other with the variation of the intrinsic force range.