期刊
PHYSICS LETTERS B
卷 676, 期 1-3, 页码 69-73出版社
ELSEVIER
DOI: 10.1016/j.physletb.2009.04.076
关键词
Landau gauge; Gribov problem; Simulated annealing; Gluon and ghosts propagators; Running coupling
资金
- DFG [RUS 113/866/0, RFBR 06-02-04014, FOR 465 Mu 932/2-4]
- Australian Research Council
We present recent results for the Landau-gauge gluon and ghost propagators in SU(3) lattice gluodynamics obtained on a sequence of lattices with linear extension ranging from L = 64 to L = 96 at beta = 5.70, thus reaching deep infrared momenta down to 75 MeV. Our gauge-fixing procedure essentially uses a Simulated annealing technique which allows us to reach gauge-functional values closer to the global maxima than standard approaches do. Our results are consistent with the so-called decoupling solutions found for Dyson-Schwinger and functional renormalization group equations. (C) 2009 Elsevier B.V. All rights reserved.
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