Xg. Li et Cg. Bao, Low-lying states of four-boson systems with a repulsive core and an attractive tail in the interaction, FEW-BODY SY, 31(1), 2001, pp. 51-70
The Schrodinger equation of a four-boson model system is solved via a varia
tional procedure. The pairwise interaction contains a repulsive core and an
attractive tail. The features of the low-lying states are extracted via an
analysis of the wave functions. The decisive effect of symmetry is demonst
rated. A classification of states based on the inherent nodal structures of
the internal wave functions is proposed.