{"paper":{"title":"Color-octet heavy quarkonium productions in Z0 decays at LEP","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"H. S. Song (Seoul National Univ.), Jungil Lee, P. Ko (Hong-Ik Univ), Seungwon Baek (Seoul National Univ.)","submitted_at":"1996-07-04T10:08:04Z","abstract_excerpt":"We consider the energy and the polar angle distributions of J/\\psi's produced via the color-singlet and the color-octet (^3S_1^{(8)}) mechanisms in Z^0 \\to J/\\psi +X at LEP. Since both distributions of the J/\\psi produced via color-octet mechanism are significantly different from those via color-singlet mechanism, these observables can be used as tests of color-octet production mechanism for heavy quarkonia. We also discuss Z^0 \\rightarrow \\Upsilon + X and W \\to J/\\psi ( or \\Upsilon) + X in brief."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9607236","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"}