Instanton propagator and instanton induced processes in scalar model

Details Instanton propagator and instanton induced processes in scalar model Instanton propagator and instanton induced processes in scalar model

2000-10-19

arxiv.org/abs/hep-ph/0010226v1

Phys.Rev. D65 (2002) 085007

Physics

High Energy Physics

High Energy Physics - Phenomenology

44 pages, 7 postscript figures, LaTeX

Scientific paper

10.1103/PhysRevD.65.085007

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.

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