Nature of the finite temperature transition in QCD with strange quark

Y. Iwasaki; K. Kanaya; S. Kaya; S. Sakai; T. Yoshié

doi:10.1016/0920-5632(95)00292-H

paper

Nature of the finite temperature transition in QCD with strange quark

arXiv:hep-lat/9412012 · doi:10.1016/0920-5632(95)00292-H

Abstract

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 $β \leq 4.7$ on $8^{2} \times 10 \times 4$ and $1 2^{3} \times 4$ lattices, which implies the transition is first order for $m_q \simm{<} 140$ MeV. For $N_{F} = 2 + 1$ we study two cases of $m_{s} ≃ 150$ and 400 MeV with $m_{u} = m_{d} ≃ 0$ . 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.

ps file, 3 pages with 4 figures

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Static and Dynamic Critical Phenomena at a Second Order QCD Phase Transition

Nature of the finite temperature transition in QCD with strange quark

Abstract

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