Dipole formalism with heavy fermions

Abstract

We extend the dipole formalism of Catani and Seymour to QCD processes involving heavy fermions. We give the appropriate subtraction terms together with their integrated counterpart. All calculations are done within dimensional regularization. Our formulae can be used with three variants of dimensional regularization (conventional dimensional regular iz at ion, the 't Hooft-Veltman scheme or the four-dimensional scheme).