{"paper":{"title":"Search for the low-lying excited baryon $\\Sigma^*(1/2^-)$ through process $\\Lambda^+_c \\to \\Lambda K^0 \\pi^+$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Bo-Qiang Ma, En Wang, Guan-Ying Wang, Sheng-Chao Zhang, Wen-Tao Lyu","submitted_at":"2026-01-19T07:16:22Z","abstract_excerpt":"Motivated by recent BESIII measurements of the singly Cabibbo-suppressed processes $\\Lambda^+_c \\to \\Lambda K^+ \\pi^0$ and $\\Lambda^+_c \\to \\Lambda K_S^0 \\pi^+$, we investigate the process $\\Lambda^+_c \\to \\Lambda K^0 \\pi^+$ by taking into account the contribution from the low-lying excited baryon $\\Sigma^*(1/2^-)$, dynamically generated via the $S$-wave pseudoscalar meson-octet baryon interaction, as well as from the intermediate resonances $K^*(892)$ and $N(1535)$. Our model successfully reproduces the BESIII $\\pi^+K^0$ invariant mass distribution, and predicts a distinct cusp structure arou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.12778","kind":"arxiv","version":2},"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/2601.12778/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"}