NNLO QCD study of polarised W + W − production at the LHC
René Poncelet, Andrei Popescu
Abstract
Abstract: Longitudinal polarisation of the weak bosons is a direct consequence of Electroweak symmetry breaking mechanism providing an insight into its nature, and is instrumental in searches for physics beyond the Standard Model. We perform a polarisation study of the diboson production in the pp →e+veμ−v¯μ process at NNLO QCD in the fiducial setup inspired by experimental measurements at ATLAS. This is the first polarisation study at NNLO. We employ the double-pole approximation framework for the polarised calculation, and investigate NNLO effects arising in differential distributions.
Topics & Concepts
Electroweak interactionPhysicsParticle physicsQuantum chromodynamicsLarge Hadron ColliderBosonSymmetry breakingProduction (economics)Standard Model (mathematical formulation)Nuclear physicsGauge (firearms)ArchaeologyHistoryMacroeconomicsEconomicsParticle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle Interactions