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There are three distinct types of penguin contributions: (i) $b\\to sq\\bar q\\to s\\eta_{q}$, (ii) $b\\to ss\\bar s\\to s\\eta_s$, and (iii) $b\\to s q\\bar q\\to q \\bar K_h$, where $\\eta_q=(u\\bar u+d\\bar d)/\\sqrt{2}$ and $\\eta_s=s\\bar s$. $B\\to K^{(*)}\\eta^{(')}$ decays are dominated by type-II and type-III penguin contributions. The interference, constructive for $K\\eta'$ and $K^*\\eta$ and destructive for $K\\eta$ "},"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":"1005.1968","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-05-11T23:16:00Z","cross_cats_sorted":[],"title_canon_sha256":"19bfa6cd427fde828084039d8f523836a9a3beb1634133574c1806b2c5f0e15a","abstract_canon_sha256":"ec1e618575d527fd4dc414e0bea1f1145e149c3614ec7d115c19e528b451d7d7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:26.559801Z","signature_b64":"i03DxvHOgAYH1Rq+r5Cu6nAzRRYeClqaXxJEKzTWHdzFFq0OieH3hp5pykOQJAN1y58QgGWsHWSokN4wN8bXDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6286ad6dc8c2a1c6448b5d2c437d9d41fc60ca2dd5b65ebbb422ae0e85f6629","last_reissued_at":"2026-05-18T02:33:26.559419Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:26.559419Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On Charmless $B\\to K_h\\eta^{(')}$ Decays with $K_h=K,K^*,K_0^*(1430),K_2^*(1430)$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Chun-Khiang Chua, Hai-Yang Cheng","submitted_at":"2010-05-11T23:16:00Z","abstract_excerpt":"We study the charmless decays $B\\to K_h\\eta$ and $B\\to K_h\\eta'$  within the framework of QCD factorization (QCDF) for $K_h= K,K^*,K_0^*(1430)$ and naive factorization for $K_h=K_2^*(1430)$. There are three distinct types of penguin contributions: (i) $b\\to sq\\bar q\\to s\\eta_{q}$, (ii) $b\\to ss\\bar s\\to s\\eta_s$, and (iii) $b\\to s q\\bar q\\to q \\bar K_h$, where $\\eta_q=(u\\bar u+d\\bar d)/\\sqrt{2}$ and $\\eta_s=s\\bar s$. $B\\to K^{(*)}\\eta^{(')}$ decays are dominated by type-II and type-III penguin contributions. 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