{"paper":{"title":"HQET and Form Factor Effects in $B\\to K^{(*)}\\ell^+\\ell^-$","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Old Dominion University), W. Roberts (CEBAF","submitted_at":"1995-12-07T15:22:24Z","abstract_excerpt":"We examine the rates for the exclusive decays $B\\to K^{(*)}\\ell^+\\ell^-$. We use the scaling predictions of the heavy quark effective theory to extract the necessary form factors from fits to various combinations of data. These data include the $D\\to K^{(*)}\\ell\\nu$ semileptonic decays, as well as the nonleptonic decays $B\\to K^{(*)}\\psi^{(\\prime)}$ and the rare decay $B\\to K^*\\gamma$. We use different parametrizations of form factors, and find that integrated decay rates are not very sensitive to the forms chosen. However, the decay spectra and the forward-backward asymmetry in $B\\to K^*\\ell^"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9512253","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"}