## Gauge Invariant Quark Propagator in the Instanton Background

Author:Marcus Hutter

Comments:15 latex pages, 1 figure, macros: epsf.sty

Reference:Technical Report LMU-95-03, hep-ph/9502361

Abstract:After a general discussion on the choice of gauge, we compare the quark propagator in the background of one instanton in regular and singular gauge with a gauge invariant propagator obtained by inserting a path-ordered gluon exponential. Using a gauge motivated by this analysis, we were able to obtain a finite result for the quark condensate without introducing an infrared cutoff nor invoking some instanton model.

## Paper: Source (70kb), or PostScript (236kb), or PDF (169kb), or other formats at arXiv.org

BibTeX Entry@TechReport{Hutter:95prop, author = "M. Hutter", number = "LMU-95-03", institution = "Theoretische Physik, LMU Muenchen", title = "Gauge Invariant Quark Propagator in the Instanton Background", year = "1995", pages = "1--15", url = "http://arxiv.org/abs/hep-ph/9502361", url2 = "http://www.hutter1.net/physics/pprop.htm", abstract = "After a general discussion on the choice of gauge, we compare the quark propagator in the background of one instanton in regular and singular gauge with a gauge invariant propagator obtained by inserting a path-ordered gluon exponential. Using a gauge motivated by this analysis, we were able to obtain a finite result for the quark condensate without introducing an infrared cutoff nor invoking some instanton model.", }