Alternative refined Gribov-Zwanziger Lagrangian

作者：Gracey J A^*

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2010, 82(8): 085032.

DOI：10.1103/PhysRevD.82.085032

We consider the implications of the condensation of a general local Becchi-Rouet-Stora-Tyutin 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 color 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.

• 出版日期2010-10-29