Cutoff effects of Wilson fermions on the QCD equation of state to O(g^2)

Abstract

We compute the O(g^2) contribution to the thermodynamic pressure for Wilson fermions in the standard, the twisted mass, and clover improved formulation in lattice perturbation theory, including finite mass effects. We compare the continuum approaches of these discretizations for the massive ideal and interacting gas. In all cases, for N_t \geq 8 cutoff effects of Wilson type fermions are comparable to those of staggered fermions, but asymptotic scaling requires $N_{\tau }>10$.

9 pages, 4 figures. Version shortened to a brief report accepted by PRD

References in corpus (8)

• Twisted mass lattice QCD
• Twisted Mass, Overlap and Creutz Fermions: Cut-off Effects at Tree-level of Perturbation Theory
• Phase structure of thermal lattice QCD with N_f=2 twisted mass Wilson fermions
• Lattice cut-off effects and their reduction in studies of QCD thermodynamics at non-zero temperature and chemical potential
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Cited by in corpus (10)

• The QCD equation of state from the lattice
• The thermal QCD transition with two flavours of twisted mass fermions
• Lattice QCD based on OpenCL
• The equation of state of quark-gluon matter from lattice QCD with two flavors of twisted-mass Wilson fermions
• Quark number densities at imaginary chemical potential in $N_f=2$ lattice QCD with Wilson fermions and its model analyses
• Phase structure of thermal lattice QCD with N_f=2 twisted mass Wilson fermions
• Thermal transition temperature from twisted mass QCD
• QCD thermodynamics with two flavours of Wilson fermions on large lattices
• LatticeQCD using OpenCL
• CL2QCD - Lattice QCD based on OpenCL