Alternative subtraction scheme using Nagy Soper dipoles

TL;DR

This paper introduces a new subtraction scheme for NLO QCD calculations that simplifies the process by reducing the number of transformations needed to handle infrared divergences, with initial applications demonstrated at collider experiments.

Contribution

The paper proposes an alternative subtraction scheme that significantly reduces the complexity of infrared divergence treatment in NLO QCD calculations compared to the standard method.

Findings

Reduced number of transformations in the subtraction scheme

Successful application to collider processes

Potential for more efficient NLO computations

Abstract

We present an alternative subtraction scheme for the treatment of infrared divergences in NLO QCD calculations. In this scheme, the number of transformations is greatly reduced with respect to the standard subtraction scheme by Catani and Seymour. We discuss the general setup of the scheme as well as first applications to NLO processes at hadron and lepton colliders.