{"paper":{"title":"A possible $\\Sigma^*$ or $\\Lambda^*$ resonance with $J^P=3/2^-$ in $K^-p\\to K\\Xi$ scattering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Bing-Song Zou, Jia-Jun Wu, Zheng-Li Luo","submitted_at":"2026-05-25T16:33:08Z","abstract_excerpt":"We analyze the $K^-p\\to K^+\\Xi^-$ and $K^-p\\to K^0\\Xi^0$ processes in the energy region $1.8<\\sqrt{s}<2.8$ GeV within an effective Lagrangian approach. The $\\Lambda(1800)$ and $\\Sigma(2250)$ resonances, along with the ground states $\\Sigma$ and $\\Lambda$, are included. Additionally, a possible $J^P=3/2^-$ $\\Sigma^*$ or $\\Lambda^*$ resonance with a mass around 1.9 GeV and a width of approximately 200 MeV is introduced to describe the structure at 2.0 GeV in the total cross section and reproducing the threshold behavior. The two possible solutions corresponding to $\\Sigma^*(3/2^-)$ and $\\Lambda^"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.26015","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/2605.26015/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"}