Fermion Loops, conserved currents and single-W

Abstract

The relevance of fermion loop corrections to four fermion processes at e+ e- colliders is reviewed with regard to the recent extension to the case of massive external particles and its application to single-W processes.

Comments: Talk given at the 5th Zeuthen Workshop "Loops and Legs in Quantum Field Theory" Bastei, April 9-14, 2000. 6 pages. To appear in the proceedings