Effective interactions in the Λ-α and Λ-Λ-α systems
The influence of hard core correlations on the effective interactions in theΛ-α andΛ-Λ-α systems is studied. It is found that the hard core correlations modify the shape of the effectiveΛ-α potential such that the minimum is no longer at the origin but at about 1.2 fm. Hard core correlations also give rise to an effective three-body force which decreases the binding energy of theΛ-Λ-α system by 0.5–0.7 MeV.