A ONE-BOSON-EXCHANGE POTENTIAL FOR LAMBDA-N, LAMBDA-LAMBDA AND XI-N SYSTEMS AND HYPERNUCLEI

NN OBEP due to Ueda, Riewe and Green is extended to Lambda N and Lambd a Lambda systems in the framework of the nonet mesons and the SU(3) in variance. The data for Lambda p cross sections and hypertriton are rep roduced. The Lambda N S-1(0) phase shift is found to be more attractiv e than the S-3(1). Furthermore, the data for the separation energies o f He-6(Lambda Lambda), Be-10(Lambda Lambda) and B-13(Lambda Lambda) ar e reasonably reproduced. No bound state exists for the Lambda Lambda s ystem. The Lambda Lambda S-1(0) phase shift is similar to the Lambda N S-1(0). The :in total cross section is predicted. Xi N phase shifts a re also predicted. (C) 1998 Elsevier Science B.V.