Light ΛΛ hypernuclei and the onset of stability for ΛΞ hypernuclei -: art. no. 041001

New Faddeev-Yakubovsky calculations for light LambdaLambda hypernuclei are presented in order to assess the self-consistency of the LambdaLambda-hypernuclear binding-energy world data and the implied strength of the LambdaLambda interaction, in the wake of recent experimental reports on H-4(LambdaLambda) and He-6(LambdaLambda). Using Gaussian soft-core simulations of Nijmegen one-boson-exchange model interactions, the Nijmegen soft-core model NSC97 simulations are found close to reproducing the recently reported binding energy of He-6(LambdaLambda), but not those of other species. For stranger systems, Faddeev calculations of light LambdaXi hypernuclei, using a simulation of the strongly attractive LambdaXi interactions due to the same model, suggest that He-6(LambdaXi) marks the onset of nuclear stability for Xi hyperons.