Flow equations in light-front QCD

Details Flow equations in light-front QCD Flow equations in light-front QCD

1999-12-02

arxiv.org/abs/hep-ph/9912219v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, LaTeX

Scientific paper

Light-front QCD is studied by the method of flow equations. Dynamical gluon mass is generated, which evolves with the cut-off according to renormalization group equation. Eliminating by flow equations the quark gluon coupling with the dynamical gluon mode, one obtains an effective interaction between quark and antiquark which exibits the Coulomb and confining singularities. The scale, which regulates the light-front IR singularities in the gluon sector, defines the string tension of confining interaction. The mechanism of confinement in the light-front formalism is suggested, based on the singular nature of the light-front gauge.

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