Scattering amplitudes on the Coulomb branch of N=4 super Yang-Mills
Johannes M. Henn
TL;DR
This paper explores how Coulomb branch vacuum expectation values in N=4 super Yang-Mills can regulate infrared divergences in planar scattering amplitudes, offering advantages over traditional dimensional regularisation.
Contribution
It introduces a novel regularisation method for scattering amplitudes using Coulomb branch VEVs, providing both conceptual insights and practical benefits.
Findings
Coulomb branch VEVs effectively regulate IR divergences
Advantages over dimensional regularisation are identified
Potential for improved computational techniques
Abstract
We discuss planar scattering amplitudes on the Coulomb branch of N=4 super Yang-Mills. The vacuum expectation values on the Coulomb branch can be used to regulate infrared divergences. We argue that this has a number of conceptual as well as practical advantages over dimensional regularisation.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Particle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions