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arXiv · 0710.0471

Non-perturbative improvement of nHYP smeared Wilson fermions

Roland Hoffmann·Anna Hasenfratz·Stefan Schaefer
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Abstract

Using Schroedinger functional techniques, we determine the coefficient of the clover term necessary for non-perturbative O(a) improvement of hypercubic smeared Wilson fermions on a quenched plaquette action background. Unlike for unsmeared Wilson fermions, the resulting clover coefficients are close to the tree-level value even at coarse lattice spacings, indicating the absence of large cutoff effects. A number of exploratory tests are also performed with the improved action.

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Roland Hoffmann, Anna Hasenfratz, Stefan Schaefer. 2007-10-02. Non-perturbative improvement of nHYP smeared Wilson fermions. https://arxiv.org/abs/0710.0471

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