We report on a study of the light quark spectrum using an improved gauge action and both Kogut-Susskind and Naik quark actions. We have studied six different lattice spacings, corresponding to plaquette couplings ranging from 6.8 to 7.9, with five to six quark masses per coupling. We compare the two quark actions in terms of the spectrum and restoration of flavor symmetry. We also compare these results with those from the conventional action.
@article{arxiv.hep-lat/9711013,
title = {Light quark spectrum with improved gauge and fermion actions},
author = {MILC Collaboration and Claude Bernard and Tom DeGrand and Carleton DeTar and Steven Gottlieb and Urs M. Heller and Jim Hetrick and Craig McNeile and Kari Rummukainen and Bob Sugar and Doug Toussaint and Matthew Wingate},
journal= {arXiv preprint arXiv:hep-lat/9711013},
year = {2008}
}
Comments
3 pages, 4 figures, LaTeX, uses espcrs2, epsf, talk presented by S. Gottlieb at LATTICE'97, Edinburgh, 22-26 July 1997