{"paper":{"title":"Production of the Y(4260) State in B Meson Decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"C.M. Zanetti, M. Nielsen, R.M. Albuquerque","submitted_at":"2015-01-31T15:05:28Z","abstract_excerpt":"We calculate the branching ratio for the production of the meson $Y(4260)$ in the decay $B^- \\to Y(4260)K^-$. We use QCD sum rules approach and we consider the $Y(4260)$ to be a mixture between charmonium and exotic tetraquark, $[\\bar{c}\\bar{q}][qc]$, states with $J^{PC}=1^{--}$. Using the value of the mixing angle determined previously as: $\\theta=(53.0\\pm0.5)^\\circ$, we get the branching ratio $\\mathcal{B}(B\\to Y(4260)K)=(1.34\\pm0.47)\\times10^{-6}$, which allows us to estimate an interval on the branching fraction $3.0 \\times 10^{-8} < {\\mathcal B}_{_Y} < 1.8 \\times 10^{-6}$ in agreement wit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00119","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"}