Some aspects of the quark-antiquark Wilson loop formalism in the NRQCD framework

Abstract

Starting from the NRQCD Lagrangian the heavy quark-antiquark potential is written in terms of field strength insertions on a static Wilson loop. The relevant matching coefficients are given at the present status of knowledge. The short-range, perturbatively dominated, behaviour of the spin-dependent terms is discussed.

4 pages, Latex (espcrc2.sty), 2 figures. Talk presented at the Euroconference QCD'98, Montpellier, July 2-8, 1998; to appear in Nucl. Phys. B (Proc. Suppl.)

References in corpus (2)

• Potential NRQED: The Positronium Case
• Two-Loop Anomalous Dimension of the Chromo-Magnetic Moment of a Heavy Quark

Cited by in corpus (8)

• Effective field theories for heavy quarkonium
• QCD forces and heavy quark bound states
• The Heavy Quarkonium Spectrum at Order $m{\alpha }_s^5\ln {\alpha }_s$
• Poincare' invariance constraints on NRQCD and potential NRQCD
• A lattice potential investigation of quark mass and volume dependence of the ${\rm Y}$ spectrum
• Power Counting and βFunction in NRQCD
• Dissipative effects on quarkonium spectral functions
• The non-perturbative QCD potential