8–12 Sept 2025
Charles B. Wang Center, Stony Brook University
US/Eastern timezone

NNLO Subtraction based on scalar QCD and pure splitting functions

Speaker

Max Knobbe (Fermilab)

Description

In this talk, I will present a novel decomposition of QCD splitting functions, developed systematically up to second order in the strong coupling constant. The key idea is to express the splitting functions as a sum of two distinct components: scalar dipole radiator functions and pure remainder terms. Unlike traditional methods, this framework avoids relying on soft or collinear approximations, offering a more general and robust structure. This decomposition not only provides deeper insight into the analytic structure of QCD radiation but also naturally works in practical applications. I will also present first results illustrating how this approach can be used to build a subtraction scheme.

Track 1: Perturbative and resummed predictions, parton showers and event generators for LHC and EIC

Author

Max Knobbe (Fermilab)

Presentation materials