Near-to-planar three-jet events at NNLL accuracy
Luke Arpino, Andrea Banfi, Basem Kamal El-Menoufi
Abstract
A bstract We extend the ARES method for next-to-next-to-leading-logarithmic (NNLL) QCD resummations to three-jet event shapes in e + e − collisions in the near-to-planar limit. In particular, we define a NNLL radiator for three hard emitters, and discuss new features of NNLL corrections arising specifically in this case. As an example, we present predictions for the D -parameter, matched to exact next-to-leading order (NLO). After inclusion of hadronisation corrections in the dispersive approach, we compare our predictions with LEP1 data.
Topics & Concepts
PhysicsParticle physicsEvent (particle physics)Quantum chromodynamicsResummationOrder (exchange)Statistical physicsTheoretical physicsMonte Carlo methodRadiator (engine cooling)Series (stratigraphy)Gauge (firearms)High-Energy Particle Collisions ResearchParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle Interactions