2002/10/07 by Ph. Boucaud, F. De Soto, A. Donini +7
Engineering · Physics and Astronomy · #Black Holes and Theoretical Physics #Computer science #Constant (computer programming) #Coupling (piping) #Coupling constant #Engineering #Gluon #Instanton #Lattice (music) #Lattice QCD #Mathematical physics #Operator (biology) #Operator product expansion #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #hep-ph
paper · pdf · doi:10.1016/s0920-5632(02)01899-6
published as Nucl.Phys.Proc.Suppl.114:117-121,2003 · 5 pages, talk given at XXX International Meeting on Fundamental Physics, Jaca 2002
arxiv created 2002/10/07 · openalex publication_date 2003/02/01 · arxiv updated 2016/08/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Lattice data seems to show that power corrections should be convoked to describe appropriately the transition of the QCD coupling constant running from U.V. to I.R. domains. Those power corrections for the Landau-gauge MOM coupling constant in a pure Yang-Mills theory (Nf=0) are analysed in terms of Operator Product Expansion (O.P.E.) of two- and three-point Green functions, the gluon condensate <A2> emerging from this study. The semi-classical picture given by instantons can be also used to look for into the nature of the power corrections and gluon condensate.