{ "id": "2006.08137", "version": "v1", "published": "2020-06-15T05:22:22.000Z", "updated": "2020-06-15T05:22:22.000Z", "title": "Structure of the ground and excited states in $_Λ^{9}$Be nucleus", "authors": [ "Yu. A. Lashko", "A. V. Nesterov", "V. S. Vasilevsky" ], "comment": "13 pages, 4 figures, to be submitted to Phys. Rev. C", "categories": [ "nucl-th" ], "abstract": "We investigate properties of bound and resonance states in the $_{\\Lambda}^{9}$Be nucleus. To reveal the nature of these states, we use a three-cluster $2\\alpha+\\Lambda$ microscopic model. The model incorporates Gaussian and oscillator basis functions and reduces a three-cluster Schr\\\"{o}dinger equation to a two-body like many-channel problem with the two-cluster subsystems ($_{\\Lambda}^{5}$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 $_{\\Lambda}^{9}$Be and on elastic and inelastic $_{\\Lambda}^{5}$He+$\\alpha$ scattering is analyzed.", "revisions": [ { "version": "v1", "updated": "2020-06-15T05:22:22.000Z" } ], "analyses": { "keywords": [ "excited states", "resonance states", "oscillator basis functions", "model incorporates gaussian", "microscopic model" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable" } } }