{"paper":{"title":"Precise Determinations of the CKM Matrix from CP-Asymmetries in B-Decays and K_L --> \\pi^0 \\nu \\bar\\nu","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.J. Buras","submitted_at":"1994-05-24T09:20:21Z","abstract_excerpt":"We point out that the measurements of the CP asymmetries in neutral B-decays together with a measurement of $Br(K_L\\to \\pi^\\circ\\nu\\bar\\nu)$ and the known value of $\\mid V_{us}\\mid $ can determine {\\it all} elements of the Cabibbo-Kobayashi-Maskawa matrix without essentially any hadronic uncertainties. In particular the strong dependence of $Br(K_L\\to \\pi^\\circ\\nu\\bar\\nu)$ on $\\mid V_{cb}\\mid$ ($\\mid V_{cb}\\mid^4$) can be used to determine this element precisely. Consequently $\\mid V_{ub}\\mid$, $\\mid V_{td}\\mid$ and $\\mid V_{ts} \\mid $ can also be determined. We derive a set of formulae which "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9405368","kind":"arxiv","version":1},"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"}