ar X iv : h ep - l at / 9 91 00 46 v 1 2 9 O ct 1 99 9 1 Fixed - point pure gauge action using b = √ 3 RGT ∗
نویسندگان
چکیده
The b = √ 3 RGT [1] has a number of advantages compared to b = 2 [2,3]: it 1) has a smaller step size, 2) incorporates more gluonic degrees of freedom, 3) requires less tuning parameters, 4) has no overlap of either gauge or fermion fields between neighboring block cells, and 5) preserves a higher rotational symmetry for matter fields. This work complements the previous estimate of the renormalized action generated at 1/a ∼ 2 GeV using MCRG [4]. The orthogonal basis vectors defining the block lattice are the body-diagonals of four positively oriented cubes e = T1 · e, where T1 is chosen to be
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