{"paper":{"title":"$\\omega$-$\\phi$ mixing and weak annihilation in $D_s$ decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Jonathan L. Rosner, Michael Gronau","submitted_at":"2009-02-09T04:13:22Z","abstract_excerpt":"The mixing between nonstrange and strange quark wavefunctions in the $\\omega$ and $\\phi$ mesons leads to a small predicted branching ratio $\\b(D_s^+ \\to \\omega e^+ \\nu_e) = {\\cal O}(10^{-4})(\\delta/3.34^\\circ)^2$, where $\\delta$ is the mixing angle. The value $\\delta = -3.34^\\circ$ is obtained in a mass-independent analysis, while a mass-dependent analysis gives $\\delta = -0.45^\\circ$ at $m(\\omega)$ and $-4.64^\\circ$ at $m(\\phi)$. Measurement of this branching ratio thus can tell whether the decay is dominated by $\\phi$--$\\omega$ mixing, or additional nonperturbative processes commonly known a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0902.1363","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"}