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arXiv · 2006.08137

Structure of the ground and excited states in $_Λ^{9}$Be nucleus

Yu. A. Lashko·A. V. Nesterov·V. S. Vasilevsky
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Abstract

We investigate properties of bound and resonance states in the $_Λ^{9}$Be 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 ($_Λ^{5}$He and $^8$Be) being in a bound or a pseudo-bound state. Influence of the cluster polarization on the energy and widths of resonance states in $_Λ^{9}$Be and on elastic and inelastic $_Λ^{5}$He+$α$ scattering is analyzed.

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Yu. A. Lashko, A. V. Nesterov, V. S. Vasilevsky. 2021-04-21. Structure of the ground and excited states in $_Λ^{9}$Be nucleus. https://arxiv.org/abs/2006.08137

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