QCD potential at O(1/m)

Nora Brambilla, Antonio Pineda, Joan Soto, Antonio Vairo

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

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 QQ̄ 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.

Original languageEnglish
Pages (from-to)140231+1402310-1402311
JournalPhysical Review D
Volume63
Issue number1
StatePublished - 1 Jan 2001
Externally publishedYes

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