Resummation of infrared renormalons in the pion electromagnetic form factor calculations

Details Resummation of infrared renormalons in the pion electromagnetic form factor calculations Resummation of infrared renormalons in the pion electromagnetic form factor calculations

1996-11-02

arxiv.org/abs/hep-ph/9611215v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pp., 2 fig

Scientific paper

The pion electromagnetic form factor F_{\pi}(Q^{2}) is calculated at the leading order of pQCD using the running coupling constant (\alpha_{S}(Q^{2}(1-x)(1-y))) approach. The resummed expression for F_{\pi}(Q^{2}) is found. It is shown that the effect of the infrared renormalons can be taken into account by scale-setting procedure $\alpha_{S}(Q^{2}) \rightarrow \alpha_{S}(e^{f(Q^{2})}Q^{2})$ in the leading order expression

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