Four-loop collinear anomalous dimensions in QCD and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:mi mathvariant="script">N</mml:mi><mml:mo linebreak="goodbreak" linebreakstyle="after">=</mml:mo><mml:mn>4</mml:mn></mml:math> super Yang-Mills
Bakul Agarwal, Andreas von Manteuffel, Erik Panzer, Robert M. Schabinger
Abstract
We calculate the collinear anomalous dimensions in massless four-loop QCD and N=4 supersymmetric Yang-Mills theory from the infrared poles of vertex form factors. We give very precise numerical approximations and a conjecture for the complete analytic results in both models we consider.
Topics & Concepts
Massless particleConjectureQuantum chromodynamicsVertex (graph theory)Loop (graph theory)PhysicsCombinatoricsMathematical physicsMathematicsParticle physicsGraphBlack Holes and Theoretical PhysicsParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle Interactions