%0 Journal Article
%T Instanton propagator and instanton induced processes in scalar model
%A Yu. A. Kubyshin
%A P. G. Tinyakov
%J Physics
%D 2000
%I arXiv
%R 10.1103/PhysRevD.65.085007
%X The propagator in the instanton background in the $(- \lambda \phi^{4})$ scalar model in four dimensions is studied.Leading and sub-leading terms of its asymptotics for large momenta and its on-shell double residue are calculated analytically. These results are applied to the analysis of the initial-state and initial-final-state corrections and the calculation of the next-to-leading (propagator) correction to the exponent of the cross section of instanton induced multiparticle scattering processes.
%U http://arxiv.org/abs/hep-ph/0010226v1