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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 "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"hep-ph/9405368","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1994-05-24T09:20:21Z","cross_cats_sorted":[],"title_canon_sha256":"16ae150da7fa9405323cd103c13d2fb510fe7a214152e79dc460a00928e4af20","abstract_canon_sha256":"86ef48f9733afbc415b7938e839b0cb5b38ae87598e4cf99cb6faec26053fa51"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:37:45.414335Z","signature_b64":"irgJIjmVfL3LLcDqoOPhThx7WXc7GGwjpPd54/A1xyQZ6NZuLPIAQt+AsXKFD55hE+q7j9zGOhfR5qe3L+PvBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9f93dfe025a571ab3aa7d91be1880213a213268d9b0e351974f03660c376aee","last_reissued_at":"2026-05-18T04:37:45.413715Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:37:45.413715Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"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. 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