{"paper":{"title":"Semileptonic decays of $D$ mesons in three-flavor lattice QCD","license":"","headline":"","cross_cats":["hep-lat"],"primary_cat":"hep-ph","authors_text":"A. El-Khadra, A. S. Kronfeld, C. Aubin, C. Bernard, C. DeTar, D. Menscher, D. Toussaint, E. B. Gregory, H. D. Trottier, J. Hetrick, J. Osborn, J. Simone, M. B. Oktay, M. Di Pierro, M. Nobes, M. Okamoto, P. B. Mackenzie, R. Sugar, Steven Gottlieb, U. M. Heller","submitted_at":"2004-08-26T17:04:18Z","abstract_excerpt":"We present the first three-flavor lattice QCD calculations for $D\\to \\pi l\\nu$ and $D\\to K l\\nu$ semileptonic decays. Simulations are carried out using ensembles of unquenched gauge fields generated by the MILC collaboration. With an improved staggered action for light quarks, we are able to simulate at light quark masses down to 1/8 of the strange mass. Consequently, the systematic error from the chiral extrapolation is much smaller than in previous calculations with Wilson-type light quarks. Our results for the form factors at $q^2=0$ are $f_+^{D\\to\\pi}(0)=0.64(3)(6)$ and $f_+^{D\\to K}(0) = "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0408306","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/0408306/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}