Monte Carlo study of SU(2) gauge theory at finite temperature

We find numerical evidence for the phase transition between the confinement phase and free Coulomb phase of SU(2) Yang-Mills theory with lattice cut-off. The search for the critical temperature is based on a Monte Carlo study of the string tension between a heavy Q Q -pair in a heat bath. The arbitr...

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Bibliographic Details
Published in:Physics letters. B 1981-01, Vol.98 (3), p.199-204
Main Authors: Kuti, J., Polónyi, J., Szlachányi, K.
Format: Article
Language:English
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Summary:We find numerical evidence for the phase transition between the confinement phase and free Coulomb phase of SU(2) Yang-Mills theory with lattice cut-off. The search for the critical temperature is based on a Monte Carlo study of the string tension between a heavy Q Q -pair in a heat bath. The arbitrary normalization 0.2 GeV 2 is used for the string tension at zero temperature when a smooth extrapolation of the lattice theory to the continuum limit is carried out. Our numerical estimate for the critical temperature is T c ≈ 160 ± 30 MeV in the absence of quark degrees of freedom. It is suggested that the phase transition is of second-order.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(81)90987-4