{"paper":{"title":"Radiative decays of charmonium into light mesons","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Kuang-Ta Chao, Ying-Jia Gao, Yu-Jie Zhang","submitted_at":"2006-07-25T15:34:38Z","abstract_excerpt":"We apply perturbative QCD to the radiative decays of charmonia $J/\\psi$ and $\\chi_{cJ}$ into light mesons. We perform a complete numerical calculation for the quark-gluon loop diagrams involved in these processes. The calculated $J/\\psi$ decay branching ratios to P-wave mesons $f_2(1270)$ and $f_1(1285)$ fit the data well, while that of $f_0(980)$ (if treated as an $s\\bar s$ meson) is predicted to be $1.6\\times 10^{-4}$, which implies that $f_0(1710)$ can not be the $s\\bar s$ or $(u\\bar u+d\\bar d)/\\sqrt{2}$ meson. Decays of P-wave charmonia $\\chi_{cJ}\\to \\rho(\\omega, \\phi)\\gamma$ (J=0,1,2) are"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0607278","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/0607278/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"}