The Ξ- + d → n + Λ + Λ reaction as a probe of the ΛΛ interaction

Within the framework of the Faddeev equations we demonstrate that a ΛΛ-ΞN interaction that gives a ΛΛ scattering length comparable to the nn scattering length, and the binding energy of ΛΛ6He as an αΛΛ-αΞN system, produces a final-state interaction peak in the neutron spectrum for the reaction Ξ-d→nΛΛ. This suggests that this reaction could be used to constrain the ΛΛ scattering length. (orig.)