{"paper":{"title":"Broadening of $\\rho (\\to e^+e^-)$ meson produced coherently in the photonuclear reaction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"Swapan Das","submitted_at":"2014-03-28T08:43:09Z","abstract_excerpt":"The $e^+e^-$ invariant mass distribution spectra are calculated to estimate the hadron parameters of the $\\rho$ meson produced coherently in the photonuclear reaction. The elementary reaction occurring in the nucleus is considered to proceed as $ \\gamma N \\to \\rho^0 N ; ~ \\rho^0 \\to e^+e^- $. We describe the elementary $\\rho$ meson photoproduction by the experimentally determined reaction amplitude $ f_{ \\gamma N \\to \\rho^0 N } $. The $\\rho$ meson propagator is presented by the eikonal form, and the $\\rho$ meson nucleus optical potential $V_{O\\rho}$ appearing in it is estimated using the \"$t\\v"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.7305","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"}