{"paper":{"title":"`` $\\Lambda - \\Sigma$ conversion in $^4_{\\Lambda}$He and $^4_{\\Lambda}$H based on four-body calculation","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"E. Hiyama, M. Kamimura, T. Motoba, T. Yamada, Y. Yamamoto","submitted_at":"2001-06-29T10:51:00Z","abstract_excerpt":"Precise four-body calculations for $^4_{\\Lambda}$He and $^4_{\\Lambda}$H have been performed in the framework of the variational method with Jacobian-coordinate Gaussian-basis functions. All the rearrangement channels of both $NNN \\Lambda$ and $NNN \\Sigma$ are explicitly taken into account for the first time with the use of realistic $NN$ and $YN$ interactions. The role of $\\Lambda$-$\\Sigma$ conversion and the amount of the virtual $\\Sigma$-component in $^4_{\\Lambda}$He and $^4_{\\Lambda}$H are discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0106070","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/nucl-th/0106070/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}