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Topics in the heavy quark expansion
Achievements in the heavy quark theory over the last decade are reviewed, with the main emphasis put on dynamical methods which quantify nonperturbative effects via application of the OperatorExpand
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Moments of semileptonic B decay distributionsin the 1/mb expansion
Abstract.We report the OPE-based predictions for a number of lepton energy and hadronic mass moments in the inclusive semileptonic $B \to X_c \ell\nu$ decays with a lower cut on the charged leptonExpand
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Heavy quark expansion in beauty and its decays
I give an introduction to the QCD-based theory of the heavy flavor hadrons and their weak decays. Trying to remain at the next-to-elementary level and skip technicalities, I concentrate on theExpand
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Perturbative corrections to semileptonic b decay distributions
Abstract We compute O ( α s ) and O ( α s n β 0 n − 1 ) (BLM) corrections to the five structure functions relevant for b → q l ν ¯ decays and apply the results to the moments of a few distributionsExpand
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On the problem of boosting non-leptonic b baryon decays
Abstract The constituent picture of hadrons implies certain quantum mechanical inequalities which must hold in the potential models. Based on this qualitative consideration I argue that it is notExpand
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New exact heavy quark sum rules
Abstract Considering nonforward scattering amplitude off the heavy quark in the Small Velocity limit two exact superconvergent sum rules are derived. The first is the sum rule for spin of the lightExpand
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On the neutron electric dipole moment in the Weinberg CP-violation model
Abstract The neutron EDM in the Weinberg CP-violation model is shown to be dominated by the neutral Higgs boson interaction and to exceed the present experimental limitations by 2–3 orders ofExpand
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On the nonperturbative charm effects in inclusive B→Xcℓν decays
We address the nonperturbative effects associated with soft charm quarks in inclusive B decays. Such corrections are allowed by the OPE, but have largely escaped attention so far. The relatedExpand
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V(cb) from OPE sum rules for heavy flavor transitions
We derive a model-independent upper bound for the axial-vector form factor of the $B\ra D^*$ transition at zero recoil, $F_{B\ra D^*}$. The form factor turns out to be noticeably less than unity. TheExpand
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Operator product expansion, heavy quarks, QCD duality and its violations
The quark(gluon)–hadron duality constitutes a basis for the theoretical treatment of a wide range of inclusive processes — from hadronic τ decays and Re+e- to semileptonic and nonleptonic decay ratesExpand
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