PARITY-MIXING INTERSHELL COUPLING IN HYPERNUCLEI AND PROPERTIES OF LAMBDA-N INTERACTIONS

Results of the conventional analyses of the O-16(Lambda) and C-12(Lamb da) structures are briefly summarized together with properties of Lamb da Nu G-matrix interactions. As a new dynamical aspect of hypernuclear spectra, it is pointed out that the Lambda induces coupling of positi ve- and negative-parity nuclear core states through the s(Lambda)-p(La mbda) transition. The two components appear in the same energy region, so that this aspect is generally expected in hypernuclei and such eff ects should be taken into account in spectroscopic calculations.