Abstract
The separable potential equations that describe the hypertriton when ΛN-ΣN coupling and noncentral NN and YN forces are included, are formulated. Numerical solution of the equations for various potential models shows that Λ-Σ conversion in the YN interaction plays a significant role, even in the lightly bound . When the ΣN channel is formally eliminated, the dispersive energy dependence of the resulting ΛN effective interaction is repulsive, whereas the resulting ΛNN three-body force is attractive. The contribution of the ΛN tensor force is shown to depend upon the inclusion of the NN tensor force and the relative sign of the NN and ΛN tensor coupling. Also, a model which supports a ΣN bound state in the continuum appears to severely overbind the system, indicating that such a phenomenon is not present in the d→ΛNπ reaction.
- Received 4 December 1989
DOI:https://doi.org/10.1103/PhysRevC.41.2787
©1990 American Physical Society