{"paper":{"title":"J/Psi and Psi' total cross sections and formation times from data for charmonium suppression in $pA$ collisions","license":"","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"B.Z. Kopeliovich, J. Huefner, Y.B. He","submitted_at":"1999-08-04T10:23:26Z","abstract_excerpt":"The recent data for E866 experiment on the x_F dependence for charmonium suppression in pA collisions at 800 GeV are analyzed using a time- and energy-dependent preformed charmonium absorption cross section \\sigma_{abs}^\\psi(\\tau,\\sqrt{s}). For \\sqrt{s}=10 GeV the initially (\\tau=0) produced premeson has an absorption cross section of \\sigma_{pr}~3mb. At the same energy but for \\tau -> \\infty one deduces for the total cross sections \\sigma_{tot}^{J/Psi N}=(2.8\\pm 0.3)mb, \\sigma_{tot}^{J/Psi N}= (10.5\\pm 3.6)mb. The date are compatible with a formation time \\tau_{1/2}=0.6 fm/c."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9908243","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-ph/9908243/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"}