2003/09/30 by P. Faccioli, A. Schwenk, E. V. Shuryak
Physics and Astronomy · #hep-ph
published as Fizika B13 (2004) 193-200 · Talk given at 2nd NAPP Conference, Dubrovnik May 2003. Discussion improved. Results unchanged
arxiv created 2003/10/30 · arxiv updated 2009/12/01
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.