{"paper":{"title":"Exclusive production of vector mesons in $\\gamma p$ and $p p$ collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Anna Cisek, Antoni Szczurek, Wolfgang Sch\\\"afer","submitted_at":"2011-08-31T17:37:11Z","abstract_excerpt":"The dominant mechanism for the central exclusive production of vector meson in $p p$ and $p \\bar p$ collisions is the $\\gamma$ $I  P$ fusion. As a building block for the pp reaction, the amplitude for photoproduction $ \\gamma p \\to V p $ is calculated in a pQCD $k_{T}$- factorization approach. We will present results for several vector mesons: $\\rho$, $\\omega$, $\\phi$, $J/\\Psi$ and $\\Upsilon$. The total cross section for diffractive mesons production as a function of energy and photon virtuality is calculated. We will present dependence on the mass of the quark for light mesons. The results fo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.6298","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":""},"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"}