{"paper":{"title":"Applicability of perturbative QCD to $\\Lambda_b \\to \\Lambda_c$ decays","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Hsiang-nan Li, Hsien-Hung Shih, Shih-Chang Lee","submitted_at":"1999-06-15T14:28:10Z","abstract_excerpt":"We develop perturbative QCD factorization theorem for the semileptonic heavy baryon decay $\\Lambda_b \\to \\Lambda_c l\\bar{\\nu}$, whose form factors are expressed as the convolutions of hard $b$ quark decay amplitudes with universal $\\Lambda_b$ and $\\Lambda_c$ baryon wave functions. Large logarithmic corrections are organized to all orders by the Sudakov resummation, which renders perturbative expansions more reliable. It is observed that perturbative QCD is applicable to $\\Lambda_b \\to \\Lambda_c$ decays for velocity transfer greater than 1.2. Under requirement of heavy quark symmetry, we predic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9906370","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/9906370/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"}