6533b861fe1ef96bd12c58d4

RESEARCH PRODUCT

Next-to-next-to-leading order corrections to three-jet observables in electron-positron annihilation.

Stefan Weinzierl

subject

Nuclear physicsQuantum chromodynamicsPhysicsRenormalizationParticle physicsColor modelAnnihilationElectron–positron annihilationGeneral Physics and AstronomyOrder (ring theory)ObservableJet (particle physics)

description

I report on a numerical program, which can be used to calculate any infrared safe three-jet observable in electron-positron annihilation to next-to-next-to-leading order in the strong coupling constant ${\ensuremath{\alpha}}_{s}$. The results are compared to a recent calculation by another group. Numerical differences in three color factors are discussed and explained.

10.1103/physrevlett.101.162001https://pubmed.ncbi.nlm.nih.gov/18999659