{"paper":{"title":"$\\Lambda_c \\to \\Lambda \\ell^+ \\nu_\\ell$ form factors and decay rates from lattice QCD with physical quark masses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-ph","nucl-th"],"primary_cat":"hep-lat","authors_text":"Stefan Meinel","submitted_at":"2016-11-29T16:11:29Z","abstract_excerpt":"The first lattice QCD calculation of the form factors governing $\\Lambda_c \\to \\Lambda \\ell^+ \\nu_\\ell$ decays is reported. The calculation was performed with two different lattice spacings and includes one ensemble with a pion mass of 139(2) MeV. The resulting predictions for the $\\Lambda_c \\to \\Lambda e^+ \\nu_e$ and $\\Lambda_c \\to \\Lambda \\mu^+ \\nu_\\mu$ decay rates divided by $|V_{cs}|^2$ are $0.2007(71)(74)\\:{\\rm ps}^{-1}$ and $0.1945(69)(72)\\:{\\rm ps}^{-1}$, respectively, where the two uncertainties are statistical and systematic. Taking the Cabibbo-Kobayashi-Maskawa matrix element $|V_{cs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.09696","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":""},"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"}