Phase Structure of Lattice QCD at Finite Density with Dynamical Fermions

Details Phase Structure of Lattice QCD at Finite Density with Dynamical Fermions Phase Structure of Lattice QCD at Finite Density with Dynamical Fermions

1996-08-12

arxiv.org/abs/hep-lat/9608057v2

Nucl.Phys.Proc.Suppl. 53 (1997) 456-458

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, Latex, 5 postscript figures, Talk presented at LATTICE96(finite temperature)

Scientific paper

10.1016/S0920-5632(96)00686-X

We compare the chemical potential associated with the onset of non-zero baryon number density on $6^4$ and $8^4$ lattices at $\beta=5.1$ and ma=0.01. We provide evidence for $Z(3)$ tunnelling. We determine a critical chemical potential of $\mu a \simeq 0.1$ which is unexpectedly low. We also determine the dependence of the onset of the observed phase transition on the quark mass. The physically misleading result of the quenched theory is shown to persist despite the inclusion of the complex fermion determinant.

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