Phase Diagram of QCD at Finite Temperatures with Wilson Fermions

Abstract

Phase diagram of QCD with Wilson fermions for various numbers of flavors $N_F$ is discussed. Our simulations mainly performed on a lattice with the temporal size $N_t=4$ indicate the following: The chiral phase transition is of first order when $3\le N_F\le 6$, while it is continuous when $N_F=2$. For the realistic case of massless u and d quarks and the strange quark with $m_q=150$ MeV, the phase transition is first order. The sharp transition in the intermediate mass region for $N_F=2$ at $N_t=4$ observed by the MILC group disappears when an RG improvement is made for the pure gauge action.

ps file, 7 pages with 5 figures, contribution to Lattice 94'

References in corpus (1)

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

Cited by in corpus (8)

• Phase transitions in quantum chromodynamics
• Quark Gluon Plasma from Numerical Simulations of Lattice QCD
• Two-dimensional Lattice Gross-Neveu Model with Wilson Fermion Action at Finite Temperature and Chemical Potential
• Finite Temperature QCD on the Lattice
• Finite Temperature QCD with Wilson Quarks: A Study with a Renormalization Group Improved Gauge Action
• Two-flavor staggered-fermion thermodynamics at $N_t=12$
• Chiral Phase Transition in Lattice QCD with Wilson Quarks
• Analytical study of fermion determinant and chiral condensate behavior at finite temperatures in toy model approximation