Search for 1/p² Corrections to the Running QCD Coupling

1998/08/07 by G. Burgio, Burgio, G., F. Di Renzo +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #hep-lat #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9808258

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

arxiv created 1998/09/28 · arxiv updated 2009/11/30

Abstract

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/p². Possible implications for physical observables are discussed.

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