Аннотация:The nonperturbative effects in the processes involving strongly interacting particles are systematically
studied within the instanton liquid model (ILM) of the QCD vacuum. A detailed analysis of the nonperturbative
contributions to the electomagnetic quark form factor is presented. We consider the structure of the
instanton-induced effects in the evolution equation describing the high energy behavior of the form factor and
demonstrate that the instanton contributions result in the finite renormalization of the subleading perturbative
result and numerically are characterized by a small factor reflecting the diluteness of the QCD vacuum. The
consequences of the IR renormalon-induced effects, as well as various analytization procedures of the strong
coupling constant in the IR domain, are considered. The role of the instanton-induced effects in high energy
diffractive quark–quark scattering, in particular, in the formation of the soft Pomeron, is discussed. The further
applications of the approach developed to the study of the nonperturbative effects in high energy hadronic processes
are discussed.