The D234 action for light quarks
Abstract
We investigate a new light fermion action (the ``D234'' action), which is accurate up to (a3) and tadpole-improved (a αs) 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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