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Phys. Rev. Lett. 84, 238–241 (2000)

Quenched Light Hadron Spectrum

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S. Aoki1, G. Boyd2, R. Burkhalter1,2, S. Ejiri2, M. Fukugita3, S. Hashimoto4, Y. Iwasaki1,2, K. Kanaya1,2, T. Kaneko2, Y. Kuramashi4, K. Nagai2, M. Okawa4, H. P. Shanahan2, A. Ukawa1,2, and T. Yoshié1,2 (CP-PACS Collaboration)
1Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
2Center for Computational Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
3Institute for Cosmic Ray Research, University of Tokyo, Tanashi, Tokyo 188-8502, Japan
4High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan

Received 28 April 1999; revised 17 August 1999; published in the issue dated 10 January 2000

We present results of a large-scale simulation for the flavor nonsinglet 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≈0.1–0.05fm on lattices with a physical extent of 3 fm at five quark masses corresponding to mπ/mρ≈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.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.238
DOI:
10.1103/PhysRevLett.84.238
PACS:
11.15.Ha, 11.30.Rd, 12.15.Ff, 12.38.Gc
 
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