{"paper":{"title":"Search for the $\\bar{\\Theta}^- \\to $ K$^-$ $\\bar{n}$ with PHENIX","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"C. Pinkenburg (for the PHENIX collaboration)","submitted_at":"2004-03-31T21:42:58Z","abstract_excerpt":"The PHENIX experiment at RHIC should be sensitive to decays of the the anti--pentaquark $\\bar{\\Theta}^-$ via the K$^-$ $\\bar{n}$ channel. Charged kaons can be identified using the standard tracking and time of flight up to a momentum of 1.5 GeV/c. Anti--neutron candidates are detected via their annihilation signal in the highly segmented electromagnetic calorimeter (EMCal). In order to assess the quality of the anti--neutron identification we reconstruct the $\\bar{\\Sigma} \\to \\bar{n}\\pi$. As an additional crosscheck the invariant mass of K$^+$ $\\bar{n}$ is reconstructed where no resonance in t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0404001","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":""},"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"}