Disentangling soft and collinear effects in QCD parton showers

We introduce a method for the separation of soft and collinear logarithms in QCD parton evolution at O (α_s²) and at leading color. Using an implementation of the technique in the DIRE parton shower, we analyze the numerical impact of genuine triple-collinear corrections from quark pair emission in e⁺e^-→ hadrons.