<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>n</mml:mi></mml:math>-point QCD two-loop amplitude
David C. Dunbar, Warren B. Perkins, Joseph M. W. Strong
Abstract
We present an explicit expression for a particular $n$-gluon two-loop scattering partial amplitude. Specifically we present an analytic form for the single-trace ${N}_{c}$-independent color partial amplitude for the case where all external gluons have positive helicity.
Topics & Concepts
GluonAmplitudeHelicityLoop (graph theory)Quantum chromodynamicsTRACE (psycholinguistics)PhysicsParticle physicsMathematicsCombinatoricsQuantum mechanicsPhilosophyLinguisticsBlack Holes and Theoretical PhysicsParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle Interactions