{"paper":{"title":"Improved measurements of $D^0 \\to K^-\\ell^+\\nu_\\ell$ and $D^+ \\to \\bar K^0\\ell^+\\nu_\\ell$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"BESIII Collaboration","submitted_at":"2024-08-17T03:48:33Z","abstract_excerpt":"Using 7.93 fb$^{-1}$ of $e^+e^-$ collision data collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we measure the absolute branching fractions of $D^0\\to K^-e^+\\nu_e$, $D^0\\to K^-\\mu^+\\nu_\\mu$, $D^+\\to \\bar K^0e^+\\nu_e$, and $D^+\\to \\bar K^0\\mu^+\\nu_\\mu$ to be $(3.521\\pm0.009_{\\rm stat.}\\pm0.016_{\\rm syst.}) \\%$, $(3.419\\pm0.011_{\\rm stat.}\\pm0.016_{\\rm syst.}) \\%$, $(8.864\\pm0.039_{\\rm stat.}\\pm0.082_{\\rm syst.}) \\%$, and $(8.665\\pm0.046_{\\rm stat.}\\pm0.084_{\\rm syst.}) \\%$, respectively. By performing a simultaneous fit to the partial decay rates of these four deca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.09087","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2408.09087/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"}