We calculate the static quark and anti-quark potential both in quenched and
two-flavor dynamical quark lattice QCD using DBW2 gauge and domain-wall quark
actions. Lattice spacings from Sommer scale are determined. We find (i) mixing
of excited states is different in between quenched and dynamical, (ii) lattice
spacing ar0βββΌamΟββ in dynamical and (iii) coefficient of
Coulomb term being Ξ±Nfβ=0β<Ξ±Nfβ=2β at aβ1βΌ 2 GeV.Comment: Talk presented at Lattice2004(spectrum), Fermilab, June 21-26, 200