{"paper":{"title":"Resonant states of neutron-rich $\\Lambda$ hypernucleus $^7_{\\Lambda}$He","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"E. Hiyama, M. Isaka, M. Kamimura, T. Motoba, T. Myo","submitted_at":"2015-04-29T06:41:48Z","abstract_excerpt":"The structure of neutron-rich $\\Lambda$ hypernucleus, $^7_{\\Lambda}$He is studied within the framework of an $\\alpha +\\Lambda +n+n$ four-body cluster model. We predict second $3/2^+$ and $5/2^+$ states, corresponding to a $0s$ $\\Lambda$ coupled to the second $2^+$ state of $^6$He, as narrow resonant states with widths $\\Gamma \\sim 1$ MeV to be at 0.03 MeV and 0.07 MeV respect to the $\\alpha +\\Lambda +n+n$ threshold. From an estimation of the differential cross section for the $^7{\\rm Li} (\\gamma,K^+) ^7_{\\Lambda}$He reaction, there is a possibility to observe these state at JLab in the future."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07735","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}