{"paper":{"title":"Electroweak Penguin Contributions in $B^-(\\overline {B_d^0}) \\to PP$ and $PV$ decays Beyond Leading Logarithms","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Dongsheng Du, Libo Guo","submitted_at":"1995-10-11T02:37:48Z","abstract_excerpt":"Using the next-to-leading order low energy effective Hamiltonian for $|\\Delta B|=1$, $\\Delta C=\\Delta U=0$ transitions, the contributions of electroweak penguin operators in $ B^-(\\overline {B_d^0})\\rightarrow PP$ and $PV$ decays are estimated in the standard model. We find that, for some channels, the electroweak penguin effects can enhance or reduce the QCD penguin and/or tree level contributions by at least $30\\%$, and can even play dominant role."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9510259","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"}