{"paper":{"title":"Determining the $\\Theta^+$ quantum numbers through the $K^+p\\to \\pi^+K^+n$ reaction","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"nucl-th","authors_text":"(2) IFIC, A. Hosaka (1), E. Oset (2) ((1) RCNP, Osaka Univ., T. Hyodo (1), Valencia Univ.)","submitted_at":"2003-07-28T01:45:24Z","abstract_excerpt":"We study the $K^+p\\to \\pi^+K^+n$ reaction with some kinematics suited to the production of the $\\Theta^+$ resonance recently observed. We show that, independently of the quantum numbers of the $\\Theta^+$, a resonance signal is always observed in the $K^+$ forward direction. In addition, we also show how a combined consideration of the strength at the peak, and the angular dependence of polarization observables can help determine the $\\Theta^+$ quantum numbers using the present reaction."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0307105","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":""},"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"}