Search for 1/p^2 Corrections to the Running QCD Coupling

Details Search for 1/p^2 Corrections to the Running QCD Coupling Search for 1/p^2 Corrections to the Running QCD Coupling

1998-08-07

arxiv.org/abs/hep-ph/9808258v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 2 Postscript figures, uses epsfig.sty and amssymb.sty. Slight changes to the abstract and substantial enlargement of

Scientific paper

We investigate the occurrence of power terms in the running QCD coupling by
analysing non-perturbative measurements of alpha_s (p) at low momenta obtained
from the lattice three-gluon vertex. Our exploratory study provides some
evidence for power contributions to alpha_s (p) proportional to 1/p^2. Possible
implications for physical observables are discussed.

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