On the phase structure of a modified SO(3) lattice gauge theory

We investigate the disentanglement of the well-known bulk phase transition from a possible finite temperature phase transition in the adjoint representation SU(2) lattice gauge theory modified by a center-blind f(Z)2 monopole suppression term in the action. The phase structure of such a theory is studied with the help of various parameters: twist variables, Polyakov loop and the Pisa disorder parameter. We find an indication for a finite temperature transition decoupling from the bulk phase transition