Alternative refined Gribov-Zwanziger Lagrangian

Details Alternative refined Gribov-Zwanziger Lagrangian Alternative refined Gribov-Zwanziger Lagrangian

2010-09-20

arxiv.org/abs/1009.3889v1

Phys.Rev.D82:085032,2010

Physics

High Energy Physics

High Energy Physics - Theory

29 latex pages

Scientific paper

10.1103/PhysRevD.82.085032

We consider the implications of the condensation of a general local BRST invariant dimension two operator built out of the localizing ghost fields of the Gribov-Zwanziger Lagrangian which is a localized Lagrangian incorporating the Gribov problem in the Landau gauge. For different colour tensor projections of the general operator, the properties of a frozen gluon propagator and unenhanced Faddeev-Popov ghost propagator, which are observed in lattice computations, can be reproduced. The alternative possibilities are distinguished by the infrared structure of the propagators of the spin-1 fields, other than those of the gluon and Faddeev-Popov ghost, for which there is no numerical simulation data to compare with yet.

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