{"paper":{"title":"Study of Exclusive Radiative B Meson Decays","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"CLEO Collaboration","submitted_at":"1999-12-23T14:51:18Z","abstract_excerpt":"We have investigated exclusive, radiative B meson decays to charmless mesons (\\rho, \\omega, \\phi, K^*(892), K^*_2(1430)) in 9.7\\times 10^6 BBbar decays accumulated with the CLEO detector. The B -> K^*(892)\\gamma branching fractions are determined to be Br(B^0 -> K^{*0}(892)\\gamma) = (4.55 +0.72-0.68 +-0.34)\\times 10^-5 and Br(B^+ -> K^{*+}(892)\\gamma) = (3.76 +0.89-0.83 +-0.28)\\times 10^-5. We have searched for CP asymmetry in B -> K^*(892)\\gamma decays and measure Acp = +0.08 +-0.13 +-0.03. We also report the first observation of the decay B -> K^*_2(1430)\\gamma with a branching fraction of ("},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9912057","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"}