Search for Effective Lattice Action of Pure QCD
  We study a coupling flow of pure QCD gauge system by using the Monte Carlo Renormalization Group method. A rough location of the renormalized trajectory in two coupling space is obtained. Also we compare 4 different actions; (a)standard Wilson, (b)Symanzik's, (c)Iwasaki's and (d)QCDTARO's. The rotational symmetry is restored better as an action gets close to the renormalized trajectory. 
Ph.deForcrand, M.Fujisaki, T.Hashimoto, S.Hioki, H.Matsufuru,   O.Miyamura, A.Nakamura, M.Okuda I.O.Stamatescu, Y.Tago and T...