{"paper":{"title":"Non-factorizable contribtion to $\\bar{B_{d}^0} \\to \\pi^0 D^{0}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Jan O. Eeg, Lars E. Leganger","submitted_at":"2010-03-17T11:17:34Z","abstract_excerpt":"The  decay modes of the type $B \\to \\pi \\, D $ are dynamically different. For the case  $\\bar{B_{d}^0} \\to \\pi^- D^{+} $ there is a substantial factorized contribution which dominates. In contrast,  the decay mode $\\bar{B_{d}^0} \\to \\pi^0 D^{0} $ has a small  factorized contribution, being proportional to a very small Wilson coefficient combination. In this paper we calculate the relevant Wilson coefficients  at one loop level in the heavy  quark limits, both for the $b$-quark and the $c$-quark. We also emphasize that for the decay mode $\\bar{B_{d}^0} \\to \\pi^0 D^{0}$ there is a sizeable non-f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.3348","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"}