{"paper":{"title":"The $B \\to \\pi K$ Puzzle Revisited","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Ahmed Rashed, Alakabha Datta, David London, Jean-Samuel Roux, Nicolas Boisvert Beaudry","submitted_at":"2017-09-21T03:04:00Z","abstract_excerpt":"For a number of years, there has been a certain inconsistency among the measurements of the branching ratios and CP asymmetries of the four $B \\to \\pi K$ decays ($B^+ \\to \\pi^+ K^0$, $B^+ \\to \\pi^0 K^+$, $B^0 \\to \\pi^- K^+$, $B^0 \\to \\pi^0 K^0$). In this paper, we re-examine this $B \\to \\pi K$ puzzle. We find that the key unknown parameter is $|C'/T'|$, the ratio of color-suppressed and color-allowed tree amplitudes. If this ratio is large, $|C'/T'| = 0.5$, the SM can explain the data. But if it is small, $|C'/T'| = 0.2$, the SM cannot explain the $B \\to \\pi K$ puzzle -- new physics (NP) is ne"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.07142","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"}