Structure of the ground and excited states in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:msubsup><mml:mrow /><mml:mrow><mml:mi mathvariant="normal">Λ</mml:mi></mml:mrow><mml:mrow><mml:mn>9</mml:mn></mml:mrow></mml:msubsup></mml:math>Be nucleus

We investigate properties of bound and resonance states in the Λ9Be nucleus. To reveal the nature of these states, we use a three-cluster 2α+Λ microscopic model. The model incorporates Gaussian and oscillator basis functions and reduces a three-cluster Schrödinger equation to a two-body like many-channel problem with the two-cluster subsystems (Λ5He and 8Be) being in a bound or a pseudo-bound state. Influence of the cluster polarization on the...