Second-Order Approximate Corrections for QCD Processes

TL;DR

This paper introduces second-order approximate correction formulas for QCD cross sections, utilizing recent two-loop calculations for soft and collinear emissions, with applications to collider processes.

Contribution

It provides a novel second-order correction framework for QCD processes based on recent two-loop calculations, enhancing accuracy near threshold.

Findings

Improved accuracy in QCD cross section predictions.

Effective approximation formulas for soft and collinear emissions.

Applications demonstrate relevance to collider experiments.

Abstract

I present generalized formulas for approximate corrections to QCD hard-scattering cross sections through second order in the perturbative expansion. The approximate results are based on recent two-loop calculations for soft and collinear emission near threshold and are illustrated by several applications to strong-interaction processes in hadron colliders.