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

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

1997-10-12

arxiv.org/abs/hep-lat/9710045v1

Nucl.Phys.Proc.Suppl. 63 (1998) 403-405

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, Latex(espcrc2,epsf), 3 ps figures, Poster presented at Lattice 97

Scientific paper

10.1016/S0920-5632(97)00783-4

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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