The quenched limit of lattice QCD at non-zero baryon number

Abstract

We discuss the thermodynamics of gluons in the background of static quark sources. In order to do so we formulate the quenched limit of QCD at non-zero baryon number. A first numerical analysis of this system shows that it undergoes a smooth deconfining transition. We find evidence for a region of coexisting phases that becomes broader with increasing baryon number density. Although the action is in our formulation explicitly Z(3) symmetric the Polyakov loop expectation value becomes non-zero already in the low temperature phase. It indicates that the heavy quark potential stays finite at large distances, ie. the string between static quarks breaks at non-zero baryon number density already in the hadronic phase.

revised version, 25 pages, LaTeX2e file, 7 postscript files

References in corpus (3)

• Imaginary chemical potential and finite fermion density on the lattice
• Deconfinement and Percolation
• String Breaking in Lattice Quantum Chromodynamics

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