{"paper":{"title":"Differential cross sections and spin density matrix elements for gamma p -> phi p from CLAS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-ph"],"primary_cat":"nucl-ex","authors_text":"Biplab Dey, Curtis A. Meyer","submitted_at":"2011-03-20T00:37:48Z","abstract_excerpt":"Preliminary differential cross-sections and the $\\rho^0_{MM'}$ spin density matrix elements (SDME) for the reaction $\\gamma p \\to \\phi p$ for both charged- ($\\phi \\to K^+ K^-$) and neutral-mode ($\\phi \\to K^0_L K^0_S$) topologies obtained from CLAS are presented. Our kinematic coverage is from near production threshold ($\\sqrt{s} \\sim 1.97$ GeV) to $\\sqrt{s} = 2.84$ GeV, with a wide coverage in the production angle. As seen in previous LEPS results, the differential cross-sections show a localized \"bump\" between $\\sqrt{s} \\sim 2$ and 2.2 GeV that is not expected from a simple Pomeron exchange "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.3821","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":""},"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"}