On the Dirac Structure of Confinement

Details On the Dirac Structure of Confinement On the Dirac Structure of Confinement

1996-11-12

arxiv.org/abs/hep-ph/9611310v1

Phys.Rev. D55 (1997) 3987-3993

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, RevTex, 1 postscript figure

Scientific paper

10.1103/PhysRevD.55.3987

The Dirac structure of confinement is shown to be of timelike-vector nature in the heavy quark limit of QCD. This stands in contradiction with the phenomenological success of the Dirac scalar confining potential. A resolution is achieved through the demonstration that an effective scalar interaction is dynamically generated by nonperturbative mixing between ordinary and hybrid $Q \bar Q$ states. The resolution depends crucially on the collective nature of the gluonic degrees of freedom. This implies that dynamical gluonic effects are vital when attempting to incorporate fine structure in models of the $Q \bar Q$ interaction.

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