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arXiv · hep-ph/9807444

Light Mesons elm Form Factor and Running Coupling Effects

S. S. Agaev
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Abstract

The pion and kaon electromagnetic form factors $F_{M}(Q^2)$ are calculated at the leading order of pQCD using the running coupling constant method. In computations dependence of the meson distribution amplitudes on the hard scale $Q^2$ is taken into account. The Borel transform and resummed expression for $F_{M}(Q^2)$ are found. The effect of the next-to-leading order term in expansion of $α_{S}(λQ^2)$ in terms of $α_{S}(Q^2)$ on the pion form factor $F_π(Q^2)$ is discussed, comparison is made with the infrared matching scheme's result.

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S. S. Agaev. 1998-07-21. Light Mesons elm Form Factor and Running Coupling Effects. https://doi.org/10.1016/s0920-5632(99)00153-x

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