{"paper":{"title":"The decays $B_{c}\\to J/\\psi+\\bar\\ell\\nu_\\ell$ and $B_{c}\\to J/\\psi + \\pi(K)$ in covariant confined quark model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Aidos Issadykov, Mikhail A. Ivanov","submitted_at":"2018-04-02T12:26:02Z","abstract_excerpt":"In the wake of the recent measurements of the decays $B_c\\to J/\\psi\\,\\pi(K)$ and $B_c\\to J/\\psi\\,\\ell\\nu_\\ell$ reported by the LHCb Collaboration we calculate the form factors for the $B_c\\to J/\\psi$ and $B_c\\to \\eta_{c}$ transitions in full kinematical region within covariant confined quark model. Then we use the calculated form factors to evaluate the partial decay widths of the above-mentioned semileptonic and nonleptonic decays of the $B_{c}$ meson. We find that the theoretical predictions on the ratios of $\\mathcal{R}_{K^{+}/ \\pi^{+}}$ and $\\mathcal{R_{\\pi^{+}/ \\mu^{+} \\nu}}$ are in good "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.00472","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"}