{"paper":{"title":"Probing for the Charm Content of $B$ and $\\Upsilon$ Mesons","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Chia-Hung V. Chang (National Taiwan Normal University), Wei-Shu Hou (National Taiwan University)","submitted_at":"2001-01-15T17:46:08Z","abstract_excerpt":"A slow $J/\\psi$ bump exists in the inclusive $B\\to J/\\psi + X$ spectrum, while the softness of $J/\\psi$ spectrum in $\\Upsilon(1S) \\to J/\\psi + X$ decay is in strong contrast with expectations from color octet mechanism. We propose {\\it intrinsic} charm as the explanation:the former is due to $\\bar B\\to J/\\psi D \\pi$,with three charm quarks in the final state; the latter is just a small fraction of $\\Upsilon(1S) \\to (c\\bar c)_{\\rm slow} + 2$\"jet\" events, where the slow moving $c\\bar c$ system evolves into $D^{(*)}$ pairs. Experimental search for these phenomena at B Factories and the Tevatron i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0101162","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"}