We study the pion form factor F ␥␥* (Q 2 ) in the light-cone sum rule approach, accounting for radiative corrections and higher twist effects. Comparing the results to the CLEO experimental data on F ␥␥* (Q 2 ), we extract the pion distribution amplitude of twist 2. The deviation of the distribution amplitude from the asymptotic one is small and is estimated to be a 2 ()ϭ0.12Ϯ0.03 at ϭ2.4 GeV, in the model with one nonasymptotic term. The ansatz with two nonasymptotic terms gives some region of a 2 and a 4 , which is consistent with the asymptotic distribution amplitude, but does not agree with some old models.
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