Effective Lagrangians for Polyakov Loops and Quarkless Baryons

At nonzero temperature, an SU(N) gauge theory without dynamical quarks has a deconfining phase transition. Besides the usual, charge-one Polyakov loop, loops with Z(N) charge greater than one can affect non-universal features of the transition. This is investigated for two and three colors. I also introduce operators for "quarkless baryons", which are neutral under Z(N), and characterize how baryon anti-baryon pairs deconfine.