Improved bilinears in lattice QCD with nondegenerate quarks
Improved bilinears in lattice QCD with nondegenerate quarks
We describe the extension of the improvement program for bilinear operators composed of Wilson fermions to non-degenerate dynamical quarks. We consider two, three and four flavors, and both flavor non-singlet and singlet operators. We find that there are many more improvement coefficients than with degenerate quarks, but that, for three …