{"paper":{"title":"Do the $P_c^+$ Pentaquarks Have Strange Siblings?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Richard F. Lebed","submitted_at":"2015-10-22T14:43:08Z","abstract_excerpt":"The recent LHCb discovery of states $P_c^+(4380)$, $P_c^+(4450)$, believed to be $c\\bar c uud$ pentaquark resonances, begs the question of whether equivalent states with $c\\bar c \\to s\\bar s$ exist, and how they might be produced. The precise analogue to the $P_c^+$ discovery channel $\\Lambda_b \\to J/\\psi \\, K^- \\! p$, namely, $\\Lambda_c \\to \\phi \\pi^0 \\! p$, is feasible for this study and indeed is less Cabibbo-suppressed, although its limited phase space suggests that evidence of a $s\\bar s uud$ resonance $P_s^+$ would be confined to the kinematic endpoint region."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.06648","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"}