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26 April 2024
 
  » arxiv » hep-lat/0311041

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On practical problems to compute the ghost propagator in SU(2) lattice gauge theory
T.D. Bakeev ; E.-M. Ilgenfritz ; V.K. Mitrjushkin ; M. Mueller-Preussker ;
Date 27 Nov 2003
Journal Phys.Rev. D69 (2004) 074507
Subject hep-lat
AbstractIn SU(2) lattice pure gauge theory we study numerically the dependence of the ghost propagator G(p) on the choice of Gribov copies in Lorentz (or Landau) gauge. We find that the effect of Gribov copies is essential in the scaling window region, however, it tends to decrease with increasing beta. On the other hand, we find that at larger beta-values very strong fluctuations appear which can make problematic the calculation of the ghost propagator.
Source arXiv, hep-lat/0311041
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