Perturbative–nonperturbative interference in the static QCD interaction at small distances

1999/02/28 by Yu. A. Simonov · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/s0370-1573(99)00069-1

published as Phys.Rept. 320 (1999) 265-274 · LaTeX, 13 pages, references added

arxiv created 1999/03/30 · openalex publication_date 1999/10/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Short distance static quark--antiquark interaction is studied systematically using the background perturbation theory with nonperturbative background described by field correlators. A universal linear term (6N_cα_sσr)/(2π) is observed at small distance r due to the interference between perturbative and nonperturbative contributions. Possible modifications of this term due to additional subleading terms are discussed and implications for systematic corrections to OPE are formulated.

Cited by

• Operator product expansion and confinement
• Leptonic constants of heavy quarkonia in a potential approach of nonrelativistic QCD
• Is the a 0(1450) a candidate for the lowest q q1³ P₀ state?