Infrared structure of $e^+e^- \to 3$ jets at NNLO: QED-type contributions

Ridder, A. Gehrmann-De; Gehrmann, T.; Glover, E. W. N.; Heinrich, G.

Infrared structure of $e^+e^- \to 3$ jets at NNLO: QED-type contributions

Authors

Ridder, A. Gehrmann-De

Gehrmann, T.

Glover, E. W. N.

Heinrich, G.

Description

The NNLO QCD corrections to the $e^+e^- \to 3$ jets can be decomposed according to their colour factors. Out of the seven colour factors, three are of QED-type: $1/N^2$, $N_F/N$ and $N_F^2$. We use the antenna subtraction method to compute these contributions, providing complete expressions for the subtraction terms in $N_F/N$ and $N_F^2$.
Talk presented at Loops and Legs 2006, Eisenach