{"paper":{"title":"Measurement of $J/\\psi$ production in continuum $e^+e^-$ annihilations near $\\sqrt s = 10.6$ GeV","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al, the BABAR Collaboration: B. Aubert","submitted_at":"2001-06-08T21:17:06Z","abstract_excerpt":"The production of $J/\\psi$ mesons in continuum $e^+e^-$ annihilations has been studied with the BABAR detector at energies near the $\\Upsilon(4S)$ resonance, approximately 10.6 GeV. The mesons are distinguished from $J/\\psi$ production in B decays through their center-of-mass momentum and energy. We measure the cross section $e^+e^-\\to J/\\psi X$ to be $2.52\\pm 0.21\\pm 0.21$ pb; for momentum above 2 GeV/c, it is $1.87\\pm 0.10\\pm 0.15$ pb. We set a 90% confidence level upper limit on the branching fraction for direct $\\Upsilon(4S)$\\to J/\\psi X$ decays at $4.7\\times 10^{-4}$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0106044","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/0106044/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"}