{"paper":{"title":"Nonperturbative Corrections to Inclusive Beauty and Charm Decays: QCD versus Phenomenological Models","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.I.Vainshtein, I.I.Bigi, N.G.Uraltsev","submitted_at":"1992-07-04T01:06:35Z","abstract_excerpt":"We present a selfconsistent method for treating nonperturbative effects in inclusive nonleptonic and semileptonic decays of heavy flavour hadrons. These effects give rise to powerlike corrections $\\propto 1/m_Q^n\\,$, $n \\ge 2$ with $m_Q$ denoting the heavy quark mass.The leading correction to the semileptonic branching ratio occurs for n=2. It is expressed in terms of the vector-pseudoscalar mass splitting: $\\delta BR\\ind{sl}/BR\\ind{sl} \\simeq BR\\ind{nl}\\, \\cdot \\,6\\,(\\,(M_V^2-M_P^2)/m_Q^2)\\cdot (c_+^2 - c_-^2)/2N_c$ and yields a {\\it reduction} of $BR\\ind{sl}$. This nonperturbative correction"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9207214","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"}