AutoDipole - Automated generation of dipole subtraction terms -

TL;DR

AutoDipole is a Mathematica package that automates the generation of dipole subtraction terms for NLO QCD calculations, integrating with MadGraph for numerical evaluation, streamlining complex particle physics computations.

Contribution

It introduces an automated tool that generates all necessary dipole subtraction terms for arbitrary scattering processes, enhancing efficiency and accuracy in NLO QCD calculations.

Findings

Successfully generates dipole terms for massless and massive particles.

Ensures numerical stability in the subtraction term evaluation.

Integrates with MadGraph for amplitude computations.

Abstract

We present an automated generation of the subtraction terms for next-to-leading order QCD calculations in the Catani-Seymour dipole formalism. For a given scattering process with n external particles our Mathematica package generates all dipole terms, allowing for both massless and massive dipoles. The numerical evaluation of the subtraction terms proceeds with MadGraph, which provides Fortran code for the necessary scattering amplitudes. Checks of the numerical stability are discussed.