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024 7 _ |a 10.1103/PhysRevD.109.014512
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100 1 _ |a Ammer, Maximilian
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245 _ _ |a Calculation of c SW at one-loop order for Brillouin fermions
260 _ _ |a Ridge, NY
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520 _ _ |a The Brillouin action is a Wilson-like lattice fermion action with a 81-point stencil, which was found to ameliorate the Wilson action in many respects. The Sheikholeslami-Wohlert coefficient cSW of the clover improvement term has a perturbative expansion cSW=c(0)SW+g20c(1)SW+O(g40). At tree-level c(0)SW=r holds for Wilson and Brillouin fermions alike. We present the Feynman rules for the Brillouin action in lattice perturbation theory, and employ them to calculate the one-loop coefficient c(1)SW with plaquette or Lüscher-Weisz gluons. Numerically its value is found to be about half that of the Wilson action.
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700 1 _ |a Dürr, Stephan
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773 _ _ |a 10.1103/PhysRevD.109.014512
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