SU(3) gauge theory with adjoint fermions

We analyze the finite temperature phase diagram of QCD with fermions in the adjoint representation. The simulations performed with four dynamical Majorana fermions, which is equivalent to two Dirac fermions, show that the deconfinement and chiral phase transitions occur at two distinct temperatures,

T_{\rm chiral} \simeq 6.65 T_{\rm deconf}

. While the deconfinement transition is first order we find evidence for a continuous chiral transition. We also present potentials for

T<T_{\rm deconf}

and

T_{\rm deconf}<T< T_{\rm chiral}

both for fundamental and adjoint fermion-antifermion pairs.

Note:

LATTICE98(hightemp), 3 pages LaTeX2e, espcrc2 style, 6 eps figures

talk: Boulder 1998/07/13
fermion: lattice field theory
gauge field theory: SU(3)
fermion: Majorana
critical phenomena: finite temperature
critical phenomena: confinement
critical phenomena: chiral
potential: chemical
Polyakov loop: correlation
condensation: chiral

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