2000/02/29 by N. Brambilla, Nora Brambilla, A. Pineda +5 · 5 citations
Physics and Astronomy · #Algorithm #Computer science #High-Energy Particle Collisions Research #Particle physics #Particle physics theoretical and experimental studies #Perturbation theory (quantum mechanics) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-lat #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.63.014023
published as Phys.Rev. D63 (2000) 014023 · 19 pages, LaTeX, 1 figure. Journal version. Discussion refined, misprints corrected, few references added; results unchanged
arxiv created 2000/11/02 · openalex publication_date 2000/12/12 · arxiv updated 2014/12/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Within an effective field theory framework, we obtain an expression for the next-to-leading term in the 1/m expansion of the singlet QQ QCD potential in terms of Wilson loops, which holds beyond perturbation theory. The ambiguities in the definition of the QCD potential beyond leading order in 1/m are discussed and a specific expression for the 1/m potential is given. We explicitly evaluate this expression at one loop and compare the outcome with the existing perturbative results. On general grounds we show that for quenched QED and fully Abelian-like models this expression exactly vanishes.