{"paper":{"title":"Two-gluon form factor of the nucleon and $J/\\psi$ photoproduction","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Leonid Frankfurt (Tel Aviv University), Mark Strikman (Penn State University)","submitted_at":"2002-05-20T21:35:41Z","abstract_excerpt":"We argue that the t-dependence of the two-gluon form factor of the nucleon should be given by $\\Gamma(t)=(1-t/m_{2g}^2)^{-2}$ with $m_{2g}^2\\approx 1 GeV^2$. We demonstrate that this form provides a good description of the t-dependence of the cross section of the elastic photoproduction of $J/\\psi$-mesons between the threshold region of $E_{\\gamma}=11 GeV$ (Cornell), $E_{\\gamma}=19 GeV$ (SLAC) and $E_{\\gamma}=100 GeV$ (FNAL) including the strong energy dependence of the t-slope. It is also well matched with the recent HERA data. The same assumption explains also the t-dependence of $\\phi$-meso"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0205223","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-ph/0205223/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"}