{"paper":{"title":"Exploring $K\\Xi^*$ and $K^*\\Xi$ molecular states and the triangle singularity in the $K^- p \\to K \\Xi(1530)$ reaction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Bing-Song Zou, Fei Huang, Ke Wang","submitted_at":"2026-06-28T14:23:39Z","abstract_excerpt":"We investigate the $K^- p \\to K \\Xi(1530)$ reaction within an effective Lagrangian approach, exploring possible $K \\Xi^*$ and $K^* \\Xi$ hadronic molecular states and the role of the triangle singularity (TS). The $\\Lambda(2050)3/2^-$ is interpreted as a $K \\Xi^*$ molecule, whereas a $K^* \\Xi$ molecule with $I(J^P)=0(3/2^-)$ and mass about 2150~MeV denoted as $\\Lambda(2150)$ can generate a TS through triangle-loop diagrams with intermediate $K^*$, $\\Xi$, and $\\pi$. The peak structure observed in the cross section near $\\sqrt{s}=2.25$ GeV is analyzed in terms of both the $\\Sigma(2250)$ resonance"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.29413","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/2606.29413/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"}