Scaling of Chiral Order Parameter in Two-Flavor QCD

Details Scaling of Chiral Order Parameter in Two-Flavor QCD Scaling of Chiral Order Parameter in Two-Flavor QCD

1996-09-09

arxiv.org/abs/hep-lat/9609022v1

Phys.Rev.Lett. 78 (1997) 179-182

Physics

High Energy Physics

High Energy Physics - Lattice

13 pages, 6 figures

Scientific paper

10.1103/PhysRevLett.78.179

The finite temperature transition of QCD with two degenerate light quarks is studied on the lattice with a renormalization group improved gauge action and the Wilson quark action. We have made simulations on an $8^3\times 4$ lattice near the chiral transition point. It is shown that the chiral condensate which is the order parameter of chiral symmetry satisfies remarkably a scaling relation with the exponents of the three dimensional O(4) Heisenberg model. This indicates that the chiral transition in two-flavor QCD is of second order in the continuum limit.

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