{"paper":{"title":"The leptonic widths of high $\\psi$-resonances in unitary coupled-channel model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"A.M. Badalian, B.L.G. Bakker","submitted_at":"2017-02-21T13:28:31Z","abstract_excerpt":"The leptonic widths of high $\\psi$-resonances are calculated in a coupled-channel model with unitary inelasticity, where analytical expressions for mixing angles between $(n+1)\\,^3S_1$ and $n\\,^3D_1$ states and probabilities $Z_i$ of the $c\\bar c$ component are derived. Since these factors depend on energy (mass), different values of mixing angles $\\theta(\\psi(4040))=27.7^\\circ$ and $\\theta(\\psi(4160))=29.5^\\circ$, $Z_1\\,(\\psi(4040))=0.76$, and $Z_2\\,(\\psi(4160))=0.62$ are obtained. It gives the leptonic widths $\\Gamma_{ee}(\\psi(4040))=Z_1\\, 1.17=0.89$~keV, $\\Gamma_{ee}(\\psi(4160))=Z_2\\, 0.76="},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.06374","kind":"arxiv","version":3},"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"}