arXiv:hep-lat/9904012·v1·High Energy Physics — Lattice

Quenched Light Hadron Spectrum

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 present results of a large-scale simulation for the flavor non-singlet light hadron spectrum in quenched lattice QCD with the Wilson quark action. Hadron masses are calculated at four values of lattice spacing in the range $a \approx$ 0.1 - 0.05 fm on lattices with a physical extent of 3 fm at five quark masses corresponding to $m_{π} / m_{ρ} \approx 0.75$ - 0.4. The calculated spectrum in the continuum limit shows a systematic deviation from experiment, though the magnitude of deviation is contained within 11%. Results for decay constants and light quark masses are also reported.