{"paper":{"title":"The Lifetimes of Heavy Flavour Hadrons - a Case Study in Quark-Hadron Duality","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"I.I. Bigi","submitted_at":"2000-01-01T21:42:56Z","abstract_excerpt":"The status of heavy quark expansions for charm and beauty lifetime ratios is reviewed. Taking note of the surprising semiquantitative success of this description for charm hadrons I interprete the new data on $\\tau (D_s)$ and re-iterate the call for more precise measurements of $\\tau (\\Xi_c^{0,+})$ and $\\tau (\\Omega_c)$. A slightly larger $B^-$ than $B_d$ lifetime is starting to emerge as predicted; the largest lifetime difference in the beauty sector, namely in $\\tau (B_c)$ vs. $\\tau (B)$ has correctly been predicted; the problem posed by the short $\\Lambda_b$ lifetime remains. The need for m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0001003","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"}