Abstract
The electromagnetic form factor of the π meson is calculated in terms of the QCD sum rules for a pion axial-vector current with allowance made for the radiative QCD corrections. The derived dependence of the pion form factor on the square of the transferred momentum Q 2 is in good agreement with the experimental data. The QCDc orrections are shown to make a large contribution, and they should be taken into account in a rigorous theoretical analysis.
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Translated from Yadernaya Fizika, Vol. 68, No. 7, 2005, pp. 1260–1267.
Original Russian Text Copyright © 2005 by Braguta, Onishchenko.
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Braguta, V.V., Onishchenko, A.I. Pion electromagnetic form factor in QCD sum rules. Phys. Atom. Nuclei 68, 1211–1217 (2005). https://doi.org/10.1134/1.1992576
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DOI: https://doi.org/10.1134/1.1992576