{"paper":{"title":"Final State Interactions and New Physics in B -> pi K Decays","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"(2) University of Cincinnati, (3) Weizmann Institute of Science), Adam F. Falk (1), Alexander L. Kagan (2), Alexey A. Petrov(1) ((1) The Johns Hopkins University, Yosef Nir (3)","submitted_at":"1997-12-01T21:39:50Z","abstract_excerpt":"Within the Standard Model, and if one assumes that soft rescattering effects are negligible, the CP asymmetry A^dir_CP (B^\\pm -> \\pi^\\pm K) is predicted to be very small and the ratio R = BR(B_d -> \\pi^\\mp K^\\pm)/BR(B^\\pm -> \\pi^\\pm K) provides a bound on the angle \\gamma of the unitarity triangle, sin^2 \\gamma \\leq R. We estimate the corrections from soft rescattering effects using an approach based on Regge phenomenology, and find effects of order 10% with large uncertainties. In particular, we conclude that A^dir_CP \\sim 0.2 and sin^2 \\gamma \\sim 1.2 R could not be taken unambiguously to si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9712225","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"}