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arXiv · hep-lat/9710045

Two-Flavor Chiral Phase Transition in Lattice QCD with the Kogut-Susskind Quark Action

JLQCD Collaboration·S. Aoki·M. Fukugita·S. Hashimoto·N. Ishizuka·Y. Iwasaki·K. Kanaya·Y. Kuramashi·H. Mino·M. Okawa·A. Ukawa·T. Yoshié
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Abstract

A summary is presented of a scaling study of the finite-temperature chiral phase transition of two-flavor QCD with the Kogut-Susskind quark action based on simulations on $L^3\times4$ ($L$=8, 12 and 16) lattices at the quark mass of $m_q=0.075, 0.0375, 0.02$ and 0.01. We find a phase transition to be absent for $m_q\geq 0.02$, and also quite likely at $m_q=0.01$. The quark mass dependence of susceptibilities is consistent with a second-order transition at $m_q=0$. The exponents, however, deviate from the O(2) and O(4) values theoretically expected.

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JLQCD Collaboration, S. Aoki, M. Fukugita, S. Hashimoto, N. Ishizuka, Y. Iwasaki, K. Kanaya, Y. Kuramashi, H. Mino, M. Okawa, A. Ukawa, T. Yoshié. 1997-10-12. Two-Flavor Chiral Phase Transition in Lattice QCD with the Kogut-Susskind Quark Action. https://doi.org/10.1016/s0920-5632(97)00783-4

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