{"paper":{"title":"Kaon and D meson semileptonic form factors from lattice QCD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"Aida El-Khadra, Doug Toussaint, Elvira G\\'amiz, James Simone, Thomas Primer","submitted_at":"2014-11-06T16:13:33Z","abstract_excerpt":"We present the status of on-going calculations of the $K\\to\\pi l\\nu$ and $D\\to K(\\pi) l\\nu$ semileptonic form factors at $q^2=0$. These form factors are important for the determination of the CKM matrix elements $\\lvert{V_{us}}\\rvert$ and $\\lvert{V_{cs(d)}}\\rvert$ respectively. This work uses the HISQ action for both valence quarks and sea quarks on MILC $N_f=2+1+1$ configurations. We employ twisted boundary conditions to calculate the form factors at zero momentum transfer directly. The $K\\to\\pi$ results are an update to previously published results with new data at the physical point. The $D"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.1651","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"}