The gluon propagator close to criticality

Details The gluon propagator close to criticality The gluon propagator close to criticality

2011-10-28

arxiv.org/abs/1110.6340v2

Phys. Rev. D 85, 034037 (2012)

Physics

High Energy Physics

High Energy Physics - Lattice

14 pages, 12 figures, 2 tables; v2: added an appendix on statistical errors, added error bands to figures, some further minor

Scientific paper

10.1103/PhysRevD.85.034037

The deconfinement phase transition of pure Yang-Mills theory at finite temperature is reflected in the behavior of gauge-fixed gluonic correlation functions. This is one of many examples of how physical information can be extracted from gauge-dependent correlations which is not always obvious. Here, we study the behavior of the Landau-gauge gluon propagator of pure SU(2) across the phase transition in 2+1 and 3+1 dimensions in order to assess to what extend the corresponding critical behavior is reflected in these correlations. We discuss why it should emerge from a continuum perspective and test our expectations in lattice simulations. A comparison with SU(3) furthermore reveals quite clear indications for a sensitivity of the gluon propagator to the order of the transition.

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