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Potential NRQCD: an effective theory for heavy quarkonium

1999/07/31 by N. Brambilla, Nora Brambilla, A. Pineda +5 · 101 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/s0550-3213(99)00693-8

published as Nucl.Phys. B566 (2000) 275 · 39 pages, LaTeX, 12 figures. Journal version. Some explanatory remarks and references added

arxiv created 1999/11/19 · openalex publication_date 2000/01/01 · arxiv updated 2015/06/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29

Abstract

Within an effective field theory framework we study heavy-quark--antiquark systems with a typical distance between the heavy quark and the antiquark smaller than 1/Λ\rm QCD. A suitable definition of the potential is given within this framework, while non-potential (retardation) effects are taken into account in a systematic way. We explore different physical systems. Model-independent results on the short distance behavior of the energies of the gluonic excitations between static quarks are obtained. Finally, we show how infrared renormalons affecting the static potential get cancelled in the effective theory.

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