Hadron spectroscopy and static quark potential in full QCD: A comparison of improved actions on the CP-PACS

Abstract

We present first results from a full QCD calculation on the CP-PACS, comparing various actions at $a^{-1}\sim 1GeV$ and $m_{\pi }/m_{\rho }\approx 0.7$--0.9. We use the plaquette and a renormalization group improved action for the gluons, and the Wilson and the SW-Clover action for quarks. We find that significant improvements in the hadron spectrum results from improving the quarks, while the gluon improvement is required for a rotationally invariant static potential. An ongoing effort towards exploring the chiral limit in full QCD is described.

arXiv comment6 pages, based on talks presented by R. Burkhalter and T. Kaneko at Lattice97, Edinburgh

References in corpus (1)

• Lattice QCD on Small Computers

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