The electromagnetic polarisability of charged pions, alpha(E), has rec
ently attracted both theoretical and experimental attention. Unfortuna
tely the experimental results disagree with each other. We have invest
igated this polarisation via a QCD sum rule approach and find alpha(E)
= 5.6 +/- 0.5 x 10(-4) fm3, which is in agreement with one experiment
and disagrees with the result of chiral perturbation theory.