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27 April 2024

» arxiv » 0901.0736

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Lattice gluodynamics computation of Landau gauge Green's functions in the deep infrared
I. L. Bogolubsky ; E. M. Ilgenfritz ; M. Müller-Preussker ; A. Sternbeck ;
Date:	7 Jan 2009
Abstract:	We present recent results for Landau gauge gluon and ghost propagators in SU(3) lattice gluodynamics obtained on a sequence of lattices with the linear extension from L=64 to L=96 at $eta = 5.70$, thus reaching "deep infrared" momenta down to 75 MeV. Our gauge fixing procedure essentially uses a simulated annealing technique which allows to reach gauge functional values closer to the global maxima than standard approaches do. Our results are still consistent with the so-called decoupling solutions found from Dyson-Schwinger and functional renormalization group equations.
Source:	arXiv, 0901.0736
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