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

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

2008-12-05

arxiv.org/abs/0812.1177v3

Phys.Rev.D81:077501,2010

Physics

High Energy Physics

High Energy Physics - Lattice

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

Scientific paper

10.1103/PhysRevD.81.077501

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 $N_\tau>10$.

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