Landau gauge gluon and ghost propagators at finite temperature from quenched lattice QCD

Understand

The behavior of the Landau gauge gluon and ghost propagators is studied in pure SU(3) gauge theory at non-zero temperature on the lattice.

• We concentrate on the momentum range [0.6, 2.0] GeV.
• For the longitudinal as well as for the transverse component of the gluon propagator we extract the continuum limit.
• We demonstrate the smallness of finite-size and Gribov-copy effects at temperatures close to the deconfinement phase transition at T=T_c and within the restricted range of momenta.