Instanton propagator in scalar model: exact expression and contribution to instanton induced processes
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
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. 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 multiparticle scattering processes.
Keywords
Cite
@article{arxiv.hep-ph/0001156,
title = {Instanton propagator in scalar model: exact expression and contribution to instanton induced processes},
author = {Yu. A. Kubyshin and P. G. Tinyakov},
journal= {arXiv preprint arXiv:hep-ph/0001156},
year = {2007}
}
Comments
17 pages, Latex, 1 ps figure. Based on the talk given by Yu.K. at the XIVth Workshop on Quantum Field Theory and High Energy Physics (May 27 - June 2, 1999, Moscow