Lattice QCD at non-zero baryon number

Details Lattice QCD at non-zero baryon number Lattice QCD at non-zero baryon number

1999-05-18

arxiv.org/abs/hep-lat/9905022v1

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, 6 figures, talk presented at ``Understanding Deconfinement in QCD'', ECT* Trento, March 1999

Scientific paper

We discuss the quenched limit of lattice QCD at non-zero baryon number density. We find evidence for a mixed phase that becomes broader with increasing baryon number. Although the action is 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, i.e. the string between static quarks breaks at non-zero baryon number density already in the hadronic phase. This behaviour is validated by calculating the heavy quark potential using Polyakov loop correlations.

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