{"paper":{"title":"Production of Prompt Charmonia in $e^+e^-$ Annihilation at $\\sqrt{s}\\approx 10.6$ GeV","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al. (Belle Collaboration), K. Abe","submitted_at":"2001-10-05T15:59:58Z","abstract_excerpt":"The production of prompt $J/\\psi$, $\\psi(2S)$, $\\chi_{c1}$ and $\\chi_{c2}$ is studied using a $32.4 fb^{-1}$ data sample collected with the Belle detector at the $\\Upsilon(4S)$ and 60 MeV below the resonance. The yield of prompt $J/\\psi$ mesons in the $\\Upsilon(4S)$ sample is compatible with that of continuum production; we set an upper limit ${\\cal B}(\\Upsilon(4S) \\to J/\\psi X) < 1.9 \\times 10^{-4}$ at the 95% confidence level, and find $\\sigma(e^{+}e^{-} \\to J/\\psi X)=1.47\\pm 0.10 \\pm 0.13$ pb. The cross-sections for prompt $\\psi(2S)$ and direct $J/\\psi$ are measured. The $J/\\psi$ momentum s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0110012","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/0110012/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}