%0 Journal Article
%T Pion form factors with improved infrared factorization
%A N. G. Stefanis
%A W. Schroers
%A H. -Ch. Kim
%J Physics
%D 1998
%I arXiv
%R 10.1016/S0370-2693(99)00096-9
%X We calculate electromagnetic pion form factors with an analytic model for $\alpha_{\rm s}(Q^2)$ which is infrared (IR) finite without invoking a ``freezing'' hypothesis. We show that for the asymptotic pion distribution amplitude, $F_{\pi ^{0}\gamma ^{*}\gamma}$ agrees well with the data, whereas the IR-enhanced hard contribution to $F_{\pi}$ and the soft (nonfactorizing) part can jointly account for the data.
%U http://arxiv.org/abs/hep-ph/9807298v2