{"paper":{"title":"Isospin analysis of charmless B-meson decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"J. Charles, O. Deschamps, S. Descotes-Genon, V. Niess","submitted_at":"2017-05-08T17:27:07Z","abstract_excerpt":"We discuss the determination of the CKM angle $\\alpha$ using the non-leptonic two-body decays $B\\to \\pi\\pi$, $B\\to \\rho\\rho$ and $B\\to \\rho\\pi$ using the latest data available. We illustrate the methods used in each case and extract the corresponding value of $\\alpha$. Combining all these elements, we obtain the following determination of $\\alpha_{\\rm dir}=( 86.2^{+4.4}_{-4.0}~~ \\cup~~ 178.4^{+3.9}_{-5.1})^\\circ$. We assess the uncertainties associated to the breakdown of the isospin hypothesis and the choice of statistical framework in detail. We also determine the hadronic amplitudes (tree a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.02981","kind":"arxiv","version":2},"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"}