An influence functional for ultrasoft QCD

Abstract

A real-time path integral for ultrasoft QCD is formulated. It exhibits a Feynman's influence functional. The statistical properties of the theory and the gauge symmetry are explicit. The correspondence is established with the alternative version, where a noise term enters a transport equation.

Comments: 6 pages, no figure Strong Electroweak Matter (SEWM 2002), Heidelberg, 2-5 october 2002