{"paper":{"title":"B -> K eta' decay as unique probe of eta' meson","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Ariel Zhitnitsky (Univ. of British Columbia), Igor Halperin","submitted_at":"1997-04-27T20:47:28Z","abstract_excerpt":"A theory of the B -> K \\eta' decay is proposed. It is based on the Cabbibo favored b -> \\bar{c} c s process followed by a direct materialization of the \\bar{c} c pair into the \\eta'. This mechanism works due to a non-valence Zweig rule violating c-quark component of the \\eta', which is unique to its very special nature. This non-perturbative \"intrinsic charm\" content of the \\eta' is evaluated using the Operator Product Expansion and QCD low energy theorems. Our results are consistent with an unexpectedly large Br(B -> K \\eta') \\simeq 7.8 \\cdot 10^{-5} recently announced by CLEO."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9704412","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"}