Search for Lambda^2/p^2 corrections to the QCD running coupling

Details Search for Lambda^2/p^2 corrections to the QCD running coupling Search for Lambda^2/p^2 corrections to the QCD running coupling

1998-09-19

arxiv.org/abs/hep-lat/9809150v1

Nucl.Phys.Proc.Suppl. 73 (1999) 623-625

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 1 figure, LaTeX, LATTICE98(Confinement)

Scientific paper

10.1016/S0920-5632(99)85155-X

We investigate the occurrence of power terms $(Lambda^2/p^2$ in the running
QCD coupling by analysing non-perturbative measurements of $\alpha_s(p)$ at
quite low momenta obtained from the lattice three-gluon vertex. Our study
provides some evidence for such a contribution. The phenomenological
implications of such a presence are reviewed.

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