{"paper":{"title":"Improved Measurements of Branching Fractions for B->Kpi, pipi and KK Decays","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al, K. Suzuki, The Belle Collaboration: Y. Chao, Y. Unno","submitted_at":"2003-11-28T11:33:48Z","abstract_excerpt":"We report improved measurements of branching fractions for $B\\to K\\pi$, $\\pi^+\\pi^-$, $\\pi^+\\pi^0$ and $K\\bar{K}$ decays based on a data sample of 85.0 million $B\\bar{B}$ pairs collected at the $\\Upsilon (4S)$ resonance with the Belle detector at the KEKB $e^+e^-$ storage ring. This data sample is almost three times larger than the sample previously used. We observe clear signals for $B\\to K\\pi$, $\\pi^+\\pi^-$ and $\\pi^+\\pi^0$ decays and set upper limits on $B\\to K\\bar{K}$ decays. The results can be used to give model-dependent constraints on the CKM angle $\\phi_3$, as well as limits on the had"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0311061","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/0311061/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}