{"paper":{"title":"Improved measurements of $D_s$ meson decay constant and branching fractions of $D_s^+\\to K^-K^+\\pi^+$, $\\bar{K}{}^0K^+$ and $\\eta\\pi^+$ decays from Belle","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Zupanc (for the Belle Collaboration)","submitted_at":"2012-12-17T09:26:25Z","abstract_excerpt":"We present preliminary absolute branching fraction measurements of leptonic $D_s^+$ decays to $\\mu^+\\nu_{\\mu}$ and $\\tau^+\\nu_{\\tau}$, and of hadronic $D_s^+$ decays to $K^-K^+\\pi^+$, $\\bar{K}{}^0K^+$ and $\\eta\\pi^+$. The results are obtained from a large data sample collected near the $\\Upsilon(4S)$ and $\\Upsilon(5S)$ resonances with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We obtain the the branching fractions ${\\cal B}(D_s^+\\to\\mu^+\\nu_{\\mu})=(0.528\\pm0.028\\pm0.019)%$ and ${\\cal B}(D_s^+\\to\\tau^+\\nu_{\\tau})=(5.70\\pm0.21{}^{+0.31}_{-0.30})%$ which are combined to d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.3942","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/1212.3942/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"}