Abstract

• Energy levels of the lambda- hypernucleiΛ 6He, Λ 7-8Li, Λ 9Be are predicted on the basis of the ∞-x-Λ three-body model with x = n, d, tand ∞, respectively. Rearrangement coupled-channels Gaussian basis treatment is used to solve the three-body system. Interactions between the constituent particles are determined so as to reproduce reasonably the observed low-energy properties of the ∞-x nuclei (5He, 6-7Li, 8Be) and the existing data of Λ-binding energies of the x+Λ and ∞+x+Λ systems ( Λ 3-4H, Λ 5He and Λ 6He,Λ 7-8Li, Λ 9Be). To solve resonance states with correct boundary condition we have used the proper treatment of the Complex Rotation method. In our calculation, Pauli forbidden states between x and α-clusters were excluded from the solution of Schrödinger equation by implementing the Orthogonality Condition Model (OCM). Structure change of the ∞+x ordinary nuclei due to the participation of the Λ particle is found to be substantially large.