{"paper":{"title":"Mass and $K\\Lambda$ coupling of $N^*(1535)$","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"B.C. Liu, B.S. Zou","submitted_at":"2005-03-29T09:31:49Z","abstract_excerpt":"Using resonance isobar model and effective Lagrangian approach, from recent BES results on $J/\\psi\\to\\bar pp\\eta$ and $\\psi\\to\\bar pK^+\\Lambda$, we deduce the ratio between effective coupling constants of $N^*(1535)$ to $K\\Lambda$ and $p\\eta$ to be $R\\equiv g_{N^*(1535)K\\Lambda}/g_{N^*(1535)p\\eta} =1.3\\pm 0.3$. With previous known value of $g_{N^*(1535)p\\eta}$, the obtained new value of $g_{N^*(1535)K\\Lambda}$ is shown to reproduce recent $pp\\to pK^+\\Lambda$ near-threshold cross section data as well. Taking into account this large $N^*K\\Lambda$ coupling in the coupled channel Breit-Wigner form"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0503069","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/0503069/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"}