SCRI Results With the Tadpole-Improved Clover Action
نویسندگان
چکیده
I discuss a study performed by the SCRI lattice gauge theory group which compared light hadron spectroscopy using the Wilson and Clover fermionic actions. We showed that a Clover coefficient chosen using tadpole-improved tree-level perturbation theory effectively eliminates the O(a) discretization errors present in the Wilson action. We found that discretization errors in light spectroscopy for both the Wilson and Clover actions are characterized by an energy scale μ of about 200-300 MeV, indicating that these errors can be reduced to the 5% level by using the Clover action at an inverse lattice spacing of about 1.3 GeV.
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