Improved staggered fermion actions for QCD thermodynamics
Jan, 199923 pages
Published in:
- Phys.Rev.D 60 (1999) 114502
e-Print:
- hep-lat/9901010 [hep-lat]
Report number:
- BI-TP-99-1,
- FSU-SCRI-99-02
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Abstract:
We analyze the cut-off dependence of the fermion contribution to the finite temperature free energy density in lattice perturbation theory for several improved staggered fermion actions. Cut-off effects are drastically reduced for the Naik action and an action with improved rotational symmetry of the quark propagator. We show that improvement of rotational symmetry at further reduces cut-off effects in thermodynamic observables. We also show that the introduction of fat-links does not have a significant influence on cut-off distortions at .Note:
- 23 pages, 6 figures Report-no: BI-TP 99/1; FSU-SCRI-99-02
- fermion: lattice field theory
- lattice field theory: action
- quantum chromodynamics
- energy: density
- finite temperature
- perturbation theory: higher-order
- quark: propagator
- symmetry: rotation
- thermodynamics
- numerical calculations
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