PJLZ--gauge fixing approach in SU(2) lattice gauge theory

Abstract

We study the SU(2) gauge theory with the interpolating gauge {\it a la} Parrinello--Jona-Lasinio--Zwanziger (PJLZ) with the gauge fixing functional $F={\sum }_{x\mu }1/2\text{tr}(U_{x\mu }{\sigma }_3{U}_{x\mu }^{†}{\sigma }_3)$. We find a strong indication of the non--analiticity with respect to the interpolating parameter $\lambda$ at ${\lambda }_c\sim 0.8$.

Comments: 6 pages, 3 postscript figures