Nature of the finite temperature transition in QCD with strange quark

Details Nature of the finite temperature transition in QCD with strange quark Nature of the finite temperature transition in QCD with strange quark

1994-12-02

arxiv.org/abs/hep-lat/9412012v1

Nucl.Phys.Proc.Suppl. 42 (1995) 499-501

Physics

High Energy Physics

High Energy Physics - Lattice

ps file, 3 pages with 4 figures

Scientific paper

10.1016/0920-5632(95)00292-H

The finite temperature transition in QCD is studied using Wilson quarks for the cases of $N_F=2$, 3 and 2+1. For $N_F=2$ the transition is smooth in the chiral limit on both $\nt=4$ and 6 lattices. For $N_F=3$, clear two state signals are observed for $\beta\leq4.7$ on $8^2\times10 \times4$ and $12^3\times4$ lattices, which implies the transition is first order for $m_q \simm{<} 140$ MeV. For $N_F=2+1$ we study two cases of $m_s \simeq 150$ and 400 MeV with $m_u=m_d \simeq 0$. In contrast to a previous result with staggered quarks, two state signals are clearly observed for both cases, suggesting a first order QCD phase transition in the real world.

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