{"paper":{"title":"Probing new physics in $B\\to J/\\Psi\\pi^0$ decay","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Dong-Sheng Du, Jing-Wu Li, Xiang-Yao Wu","submitted_at":"2009-04-08T10:55:59Z","abstract_excerpt":"We calculate the branching ratio of $B\\to J/\\Psi\\pi^{0}$ with a mixed formalism that combines the QCD-improved factorization and the perturbative QCD approaches. The result is consistent with experimental data. The quite small penguin contribution in $B\\to J/\\Psi\\pi^{0}$ decay can be calculated with this method. We suggest two methods to extract the weak phase $\\beta$. One is through the dependence of the mixing induced CP asymmetry $S_{J/\\Psi\\pi^{0}}$ on the weak phase$\\beta$, the other is from the relation of the total asymmetry $A_{CP}$ with the weak phase $\\beta$. Our result shows that the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1304","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"}