{ "id": "hep-ph/9511454", "version": "v3", "published": "1995-11-29T14:53:45.000Z", "updated": "1996-04-19T14:15:34.000Z", "title": "Phenomenology of the $1/m_Q$ Expansion in Inclusive $B$ and $D$ Meson Decays", "authors": [ "Adam F. Falk", "Michael Luke", "Martin J. Savage" ], "comment": "18 pages, 3 embedded figures, uses REVTeX and epsf.sty; this is the slightly revised version to appear in Physical Review D", "journal": "Phys.Rev. D53 (1996) 6316-6325", "doi": "10.1103/PhysRevD.53.6316", "categories": [ "hep-ph" ], "abstract": "We apply a recent theoretical analysis of hadronic observables in inclusive semileptonic heavy hadron decays to the phenomenology of $B$ and $D$ mesons. Correlated bounds on the nonperturbative parameters $\\bar\\Lambda$ and $\\lambda_1$ are derived by considering data from $B$ decays and, independently, data from $D$ decays. The two sets of bounds are found to be consistent with each other. The data from $B$ decays are then are used to extract a lower limit on the CKM matrix element $|V_{cb}|$. We address the issue of the convergence of the perturbative expansions used in the analysis, and compare our bounds on $\\bar\\Lambda$ and $\\lambda_1$ to lattice and QCD sum rule results. Finally, we argue that a comparison of the analyses of $D$ and $D_s$ decays provides evidence for the applicability of parton-hadron duality in the semileptonic decay of charmed hadrons.", "revisions": [ { "version": "v3", "updated": "1996-04-19T14:15:34.000Z" } ], "analyses": { "subjects": [ "13.20.He", "12.38.Bx", "13.20.Fc", "13.30.Ce" ], "keywords": [ "meson decays", "phenomenology", "inclusive semileptonic heavy hadron decays", "qcd sum rule results", "ckm matrix element" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. D" }, "note": { "typesetting": "RevTeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable", "inspire": 402879 } } }