High Precision for Hard Processes (HP2 2026)

Session

Track 3 - Resummation / IR

T3

Oct 5, 2026, 4:15 PM

NTI Hörsaal, building 30.10 (KIT)

Conveners

Track 3 - Resummation / IR: Parallel Session I

• Gabor Somogyi

21. Automated calculation of gluon jet functions

Kevin Marc Brune (JGU Mainz)

10/5/26, 4:15 PM

1

We present an automated framework for the computation of gluon jet functions to next-to-next-to-leading order (NNLO) in perturbation theory. Our formalism builds on the SoftSERVE strategy that is used to isolate the implicit phase-space divergences of the collinear matrix elements, keeping the observable-specific measurement function generic. This separation enables the numerical evaluation of...

32. Gluon Jet Function for transverse-momentum-like variables in NNLO QCD

Giovanbattista Favorito (University of Zurich)

10/5/26, 4:40 PM

We present the computation of the gluon jet function for transverse-momentum-like resolution variables at next-to-next-to-leading order in perturbative QCD. We discuss the relevance of the computation in the context of slicing methods for multi-jet production processes, obtaining results for two jet recombination schemes, namely the E-scheme and the WTA-scheme. The emergence of rapidity...

30. Collinear functions up to NNLO in QCD

Prasanna Dhani (University of Zurich)

10/5/26, 5:05 PM

2

The singular behaviour of QCD squared amplitudes in the collinear limit is factorized and controlled by splitting kernels with a process-independent structure. We use these kernels to define collinear functions that can be used in resummation formulae of hard-scattering observables. Different collinear functions are obtained by integrating the splitting kernels over different phase-space...

14. Precise predictions for Higgsstrahlung at future colliders

Aude Gehrmann-De Ridder (ETH Zurich)

10/5/26, 5:30 PM

1

We shall present the computation of differential observables including higher order QCD corrections up to NNLO level.