{"paper":{"title":"Standard Model predictions for B -> Kll with form factors from lattice QCD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-lat"],"primary_cat":"hep-ph","authors_text":"Chris Bouchard, Christopher Monahan, G. Peter Lepage, Heechang Na, Junko Shigemitsu","submitted_at":"2013-06-03T14:28:47Z","abstract_excerpt":"We calculate, for the first time using unquenched lattice QCD form factors, the Standard Model differential branching fractions $dB/dq^2(B \\to Kll)$ for $l=e, \\mu, \\tau$ and compare with experimental measurements by Belle, BABAR, CDF, and LHCb. We report on $\\mathcal{B}(B \\to Kll)$ in $q^2$ bins used by experiment and predict $\\mathcal{B}(B \\to K \\tau \\tau) = (1.44 \\pm 0.15) 10^{-7}$. We also calculate the ratio of branching fractions $R^\\mu_e = 1.00023(63)$ and predict $R^\\tau_l = 1.159(40)$, for $l=e, \\mu$. Finally, we calculate the \"flat term\" in the angular distribution of the differential"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0434","kind":"arxiv","version":4},"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"}