Padé approximation to fixed order QCD calculations

نویسنده

  • Robert V. Harlander
چکیده

Padé approximations appear to be a powerful tool to extend the validity range of expansions around certain kinematical limits and to combine expansions of different limits to a single interpolating function. After a brief outline of the general method, we will review a number of recent applications and describe the modifications that have to be applied in each case. Among these applications are the MS/on-shell conversion factor for quark masses and the top decay rate at NNLO in QCD.

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تاریخ انتشار 2001