QCD correlation functions and instantons

Details QCD correlation functions and instantons QCD correlation functions and instantons

1993-11-29

arxiv.org/abs/hep-lat/9311056v1

Nucl.Phys.Proc.Suppl. 34 (1994) 107-112

Physics

High Energy Physics

High Energy Physics - Lattice

(Talk at Lattice 93)

Scientific paper

10.1016/0920-5632(94)90324-7

QCD point-to-point correlation functions at distances .2-1 fm are very different for different channels, and they tell us a lot about inter-quark interactions. Recent studies based on experimental data, 'instanton liquid' approach and lattice measurements are reviewed. Agreement between all of them show that instanton-induced forces dominate the light quark physics, and new findings by Negele et al, that {\it hadrons survive 'cooling'}, make this statement obvious. We also argue that {\it chiral symmetery restoration} is due to breaking of the 'instanton liquid' into {\it polarized} 'instanton molecules'. % For Lattice-93 proceedings, figures and % hard copies available at request, sorry.

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