Resummation of infrared renormalons in the pion electromagnetic form factor calculations

1996/11/02 by Shahin S. Agaev, Agaev, Shahin S.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9611215

9 pp., 2 fig

arxiv created 1996/11/04 · arxiv updated 2009/11/30

Abstract

The pion electromagnetic form factor F_π(Q²) is calculated at the leading order of pQCD using the running coupling constant (α_S(Q²(1-x)(1-y))) approach. The resummed expression for F_π(Q²) is found. It is shown that the effect of the infrared renormalons can be taken into account by scale-setting procedure α_S(Q²) → α_S(e^f(Q²)Q²) in the leading order expression

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