{"paper":{"title":"Note on the Slope Parameter of the Baryonic \\Lambda_b to \\Lambda_c Isgur-Wise Function","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Chun Liu, Hong-Ying Jin, J. G. K\\\"orner, Ming-Qiu Huang","submitted_at":"2005-02-01T09:36:52Z","abstract_excerpt":"Using the framework of the Heavy Quark Effective Theory we have re-analyzed the Isgur-Wise function describing semileptonic \\Lambda_b to \\Lambda_c decays in the QCD sum rule approach. The slope parameter of the Isgur-Wise function is found to be \\rho^2 = 1.35 \\pm 0.12, which is consistent with an experimental measurement and a lattice calculation. To O(1/m_b,1/m_c) of the heavy quark expansion the integrated \\Lambda_b decay width is used to extract the CKM matrix element V_{cb} for which we obtain a value of |V_{cb}| = 0.041 \\pm 0.004 in excellent agreement with the value of |V_{cb}| determine"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0502004","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":""},"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"}