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

G. Burgio·F. Di Renzo·C. Parrinello·C. Pittori
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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/p^2. Possible implications for physical observables are discussed.

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G. Burgio, F. Di Renzo, C. Parrinello, C. Pittori. 1998-09-28. Search for 1/p^2 Corrections to the Running QCD Coupling. https://arxiv.org/abs/hep-ph/9808258

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