Static $\bar{Q}$-$Q$ Potential from $N_f=2$ Dynamical Domain-Wall QCD

Details Static $\bar{Q}$-$Q$ Potential from $N_f=2$ Dynamical Domain-Wall QCD Static $\bar{Q}$-$Q$ Potential from $N_f=2$ Dynamical Domain-Wall QCD

2004-09-17

arxiv.org/abs/hep-lat/0409101v1

Physics

High Energy Physics

High Energy Physics - Lattice

Talk presented at Lattice2004(spectrum), Fermilab, June 21-26, 2004

Scientific paper

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 $a_{r_0}\sim a_{m_{\rho}}$ in dynamical and (iii) coefficient of Coulomb term being $\alpha_{N_f=0}<\alpha_{N_f=2}$ at $a^{-1}\sim$ 2 GeV.

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