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

Understand

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.