Instanton contribution to the pion and proton formfactors at Q^2 greater than 1 GeV^2
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Studying the instanton-induced contributions to various hard exclusive reactions provides physical insight into the transition from the non-perturbative to the perturbative regime of QCD. To this end, we study the leading-instanton contribution to the electro-magnetic and transition formfactors, using an effective theory of the Instanton Liquid Model. We report predictions for the space-like electro-magnetic formfactor of the pion, as well as recent results for the Dirac formfactor of the proton.
Talk given at 2nd NAPP Conference, Dubrovnik May 2003. Discussion improved. Results unchanged
Talk given at 2nd NAPP Conference, Dubrovnik May 2003. Discussion improved. Results unchanged