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Title: The QCD potential at O(1/m)
Author: Brambilla, Nora
Pineda, Antonio (Pineda Ruiz)
Soto Riera, Joan
Vairo, Antonio
Keywords: Teoria de camps (Física)
Pertorbació (Dinàmica quàntica)
Field theory (Physics)
Perturbation (Quantum dynamics)
Issue Date: 2001
Publisher: The American Physical Society
Abstract: Within an effective field theory framework, we obtain an expression for the next-to-leading term in the $1/m$ expansion of the singlet $Q{\bar Q}$ 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.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review D, 2001, vol. 63, núm. 1, p. 14023-1-14023-11
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ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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