arXiv:hep-lat/9809120·v1·High Energy Physics — Lattice

Full QCD light hadron spectrum from the CP-PACS

CP-PACS Collaboration: S. Aoki🇯🇵 · G. Boyd🇯🇵 · R. Burkhalter🇯🇵 · S. Ejiri🇯🇵 · M. Fukugita🇯🇵 · S. Hashimoto🇯🇵 · Y. Iwasaki🇯🇵 · K. Kanaya🇯🇵 · T. Kaneko🇯🇵 · Y. Kuramashi🇯🇵 · K. Nagai🇯🇵 · M. Okawa🇯🇵

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Abstract

We report on an on-going two-flavor full QCD study on CP-PACS using an RG-improved gauge action and a tadpole-improved SW quark action. Runs are made for three lattice spacings $a^{- 1} \approx 0.9$ , 1.3, and 2.5 GeV on $1 2^{3} \times 24$ , $1 6^{3} \times 32$ , and $2 4^{3} \times 48$ lattices. Four sea quark masses having $m_{PS} / m_{V} \approx 0.8$ --0.6 are simulated, for each of which hadron masses are evaluated for valence quark masses corresponding to $m_{PS} / m_{V} \approx 0.8$ --0.5. Results for hadron and light quark masses are presented and compared with those obtained in quenched QCD.