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arXiv · 0901.0736

Lattice gluodynamics computation of Landau-gauge Green's functions in the deep infrared

I. L. Bogolubsky·E. -M. Ilgenfritz·M. Müller-Preussker·A. Sternbeck
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Abstract

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 $β= 5.70$, 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.

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I. L. Bogolubsky, E. -M. Ilgenfritz, M. Müller-Preussker, A. Sternbeck. 2009-05-14. Lattice gluodynamics computation of Landau-gauge Green's functions in the deep infrared. https://doi.org/10.1016/j.physletb.2009.04.076

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