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

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

2011-08-08

arxiv.org/abs/1108.1735v2

Phys. Rev. D 85, 034501 (2012)

Physics

High Energy Physics

High Energy Physics - Lattice

14 pages, 14 figures, 4 tables, version accepted for publication in PRD

Scientific paper

10.1103/PhysRevD.85.034501

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. Since the longitudinal component D_L(q) turns out to be most sensitive with respect to the phase transition we propose some combinations of D_L(q) signalling the transition much like "order parameters".

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