Light Ξ hypernuclei in four-body cluster models

Detailed structure calculations in (formula Presented) and (formula Presented) Li are performed within the framework of the microscopicof four-body c1;ster models. We adopted effective EN interactions derived from the Nijmegen interaction models, which give rise to substantially attractive E–nucleus potentials in accordance with the experimental indications. (formula Presented) and (formula Presented) are predicted to have bound states. we propose to observe the bound states in future (K^-, K⁺) experiments using ⁷ Li and ¹⁰ B targets in addition to the standard ¹² C target. The experimental confirmation of these states will provide information on the spin- and isospinaveraged ΞN interaction.