Light hadron spectrum and quark masses in QCD with two flavors of dynamical quarks

Details Light hadron spectrum and quark masses in QCD with two flavors of dynamical quarks Light hadron spectrum and quark masses in QCD with two flavors of dynamical quarks

1999-09-08

arxiv.org/abs/hep-lat/9909050v1

Nucl.Phys.Proc.Suppl. 83 (2000) 176-178

Physics

High Energy Physics

High Energy Physics - Lattice

Latex 3 pages, 6 PostScript figures, Talk presented at LATTICE99(QCD Spectrum and Quark Masses)

Scientific paper

We present updated results of the CP-PACS calculation of the light hadron spectrum in $N_{\rm f}=2$ full QCD. Simulations are made with an RG-improved gauge action and a tadpole-improved clover quark action for sea quark masses corresponding to $m_{\rm PS}/m_{\rm V} \approx 0.8$--0.6 and the lattice spacing $a=0.22$--0.09 fm. A comparison of the full QCD spectrum with new quenched results, obtained with the same improved action, shows clearly the existence of sea quark effects in vector meson masses. Results for light quark masses in $N_{\rm f}=2$ QCD are also presented.

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