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arxiv: hep-lat/9803017 · v3 · submitted 1998-03-23 · ✦ hep-lat

O(a) improvement of lattice QCD with two flavors of Wilson quarks

classification ✦ hep-lat
keywords improvementlatticeactionalgorithmartifactsbarebehaviorcomputed
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We consider O(a) improvement for two flavor lattice QCD. The improvement term in the action is computed non-perturbatively for a large range of the bare coupling. The position of the critical line and higher order lattice artifacts remaining after improvement are estimated. We also discuss the behavior of the HMC algorithm in our simulations.

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    Variance reduction schemes based on decompositions of quark propagators have proven useful for precision lattice QCD observables and may help reduce the computational cost of reaching large volumes.