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QCD Analysis of Hadronic Decays Revisited
Matthias Neubert
The calculation of perturbative corrections to the spectral moments observable in hadronic decays is reconsidered. The exact order- results and the resummation procedure…
Uncertainties in the Determination of
Matthias Neubert
I discuss the theoretical uncertainties in the extraction of from semilep\-to\-nic decays of mesons, taking into account the most recent theoretical developments.…
The Invisible Renormalon
G. Martinelli, M. Neubert, C. T. Sachrajda
We study the structure of renormalons in the Heavy Quark Effective Theory, by expanding the heavy quark propagator in powers of . We demonstrate that the way in which renorm…
Resummation of Renormalon Chains for Cross Sections and Inclusive Decay Rates
Matthias Neubert
Recently, we have developed a formalism to evaluate QCD loop diagrams with a single virtual gluon using a running coupling constant at the vertices. This corresponds to an all-orde…