{"paper":{"title":"Two-Body Charmless B Decays Involving eta and eta'","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Cheng-Wei Chiang, Jonathan L. Rosner, Michael Gronau","submitted_at":"2003-06-02T19:47:44Z","abstract_excerpt":"We discuss implications of recent experimental data for B decays into two pseudoscalar mesons, with emphasis on those with $\\eta$ and $\\eta'$ in the final states. Applying a U-spin argument, we show that tree and penguin amplitudes, both in $B^+ \\to \\pi^+ \\eta$ and in $B^+ \\to \\pi^+ \\eta'$, are of comparable magnitudes. Nontrivial relative weak and strong phases between the tree-level amplitudes and penguin-loop amplitudes in the $B^{\\pm} \\to \\pi^{\\pm} \\eta$ modes are extracted. We predict possible values for the averaged branching ratio and CP asymmetry of the $B^{\\pm} \\to \\pi^{\\pm} \\eta'$ mo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0306021","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"}