The D234 action for light quarks
classification
✦ hep-lat
keywords
actiond234lighttadpole-improvedaccuratealphacoarsecontinuum
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We investigate a new light fermion action (the ``D234'' action), which is accurate up to $\O(a^3)$ and tadpole-improved $\O(a \alpha_s)$ errors. Using D234 with Symanzik- and tadpole-improved glue we find evidence that continuum results for the quenched hadron spectrum (pion, rho and nucleon) can be obtained on coarse lattices.
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