RESUMMATION IN HARD QCD PROCESSES

We show that the resummation of large radiative corrections in QCD pro cesses can be performed both in the covariant gauge and in the axial g auge. We extend the resummation technique to inclusive processes, conc entrating on deep inelastic scattering, Drell-Yan production, and incl usive heavy meson decays in end-point regions. Leading and next-to-lea ding logarithms produced by radiative corrections are organized into S udakov factors, whose expressions are the same as those derived from t he conventional Wilson-loop approach. The gauge invariance of the resu mmation in the end-point region is demonstrated explicitly.