Deconfinement and Chiral Symmetry Restoration in an SU(3) Gauge Theory with Adjoint Fermions

Abstract

We analyze the finite temperature phase diagram of$QC$ with fermions in the adjoint representation. The simulations performed with four dynamical Majorana fermions show that the deconfinement and chiral phase transitions occur at two distinct temperatures. While the deconfinement transition is first order at T_d we find evidence for a continuous chiral transition at a higher temperature $T_c ~ 8 T_d. We observe a rapid change of bulk thermodynamic observables at T_d which reflects the increase in the number of degrees of freedom. However, these show little variation at T_c, where the fermion condensate vanishes. We also analyze the potential between static fundamental and adjoint charges in all three phases and extract the corresponding screening masses above T_d.

19 pages, LaTeX2e File, 9 Postscript figures

References in corpus (1)

• Evidence for discrete chiral symmetry breaking in N=1 supersymmetric Yang-Mills theory

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