{"paper":{"title":"Fragmentation-fraction ratio $f_{\\Xi_b}/f_{\\Lambda_b}$ in $b$- and $c$-baryon decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Fu-Sheng Yu, Hua-Yu Jiang","submitted_at":"2018-02-08T16:20:32Z","abstract_excerpt":"We study the ratio of fragmentation fractions, $f_{\\Xi_b}/f_{\\Lambda_b}$, from the measurement of $\\Xi_b^0\\to \\Xi_c^+\\pi^-$ and $\\Lambda_b^0\\to \\Lambda_c^+\\pi^-$ with $\\Xi_{c}^{+}/\\Lambda_{c}^{+}\\to p K^-\\pi^+$. With the branching fraction $\\mathcal{B}(\\Xi_c^+\\to pK^-\\pi^+)=(2.2\\pm0.8)\\%$ obtained under the U-spin symmetry, the fragmentation ratio is determined as $f_{\\Xi_b}/f_{\\Lambda_b}$=$0.054\\pm0.020$. To reduce the above uncertainties, we suggest to measure the branching fractions of $\\Xi_c^+\\to p \\overline K^{*0}$ and $\\Lambda_c^+\\to \\Sigma^+ K^{*0}$ at BESIII, Belle(II) and LHCb."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.02948","kind":"arxiv","version":3},"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"}