@article{oai:niigata-u.repo.nii.ac.jp:00002342, author = {Ejiri, S. and Kanaya, K. and Namekawa, Y. and Umeda, T.}, issue = {1}, journal = {Physical Review D, Physical Review D}, month = {Jul}, note = {We study a block spin transformation in the SU(3) lattice gauge theory on anisotropic lattices to obtain Iwasaki’s renormalization-group-improved action for anisotropic cases. For the class of actions with plaquette and 1×2 rectangular terms, we determine the improvement parameters as functions of the anisotropy ξ=a s /a t . We find that the program of improvement works well also on anisotropic lattices. From a study of an indicator which estimates the distance to the renormalized trajectory, we show that, for the range of the anisotropy ξ≈1–4, the coupling parameters previously determined for isotropic lattices improve the theory considerably.}, title = {Renormalization-group-improved action on anisotropic lattices}, volume = {68}, year = {2003} }