Calculation of QCD loops using tree-level matrix elements
Jan Winter
TL;DR
This paper explores a novel approach to calculating QCD loop amplitudes by treating color as a quantum number similar to others, using semi-numerical methods, and demonstrates its effectiveness with multi-gluon scattering results.
Contribution
It introduces a method to handle color in one-loop QCD calculations akin to other quantum numbers, enhancing semi-numerical algorithms.
Findings
Numerical results for virtual corrections in multi-gluon scattering.
Validation of the approach with semi-numerical algorithms.
Potential simplification in QCD loop calculations.
Abstract
The possibility of treating colour in one-loop amplitude calculations alike the other quantum numbers is briefly discussed for semi-numerical algorithms based on generalized unitarity and parametric integration techniques. Numerical results are presented for the calculation of virtual corrections in multi-gluon scattering.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Algorithms and Data Compression · Particle Accelerators and Free-Electron Lasers