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

C. Parrinello (UKQCD Collaboration); C. Pittori; F. Di Renzo (UKQCD Collaboration); G. Burgio

arxiv: hep-ph/9808258 · v2 · submitted 1998-08-07 · ✦ hep-ph · hep-lat

Search for 1/p² Corrections to the Running QCD Coupling

G. Burgio , F. Di Renzo (UKQCD Collaboration) , C. Parrinello (UKQCD Collaboration) , C. Pittori This is my paper

classification ✦ hep-ph hep-lat

keywords alphacouplingpowerrunninganalysingcontributionscorrectionsdiscussed

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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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Search for 1/p² Corrections to the Running QCD Coupling

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