arXiv:hep-lat/9912018·v1·High Energy Physics — Lattice
Scaling tests of the improved Kogut-Susskind quark action
The MILC collaboration: C. Bernard🇺🇸 · T. Burch🇺🇸 · T.A. DeGrand🇺🇸 · C.E. DeTar🇺🇸 · S. Gottlieb🇺🇸 · U.M. Heller🇺🇸 · J. Hetrick🇺🇸 · K. Orginos🇺🇸 · R.L. Sugar🇺🇸 · D. Toussaint🇺🇸
Abstract
Improved lattice actions for Kogut-Susskind quarks have been shown to improve rotational symmetry and flavor symmetry. In this work we find improved scaling behavior of the rho and nucleon masses expressed in units of a length scale obtained from the static quark potential, and better behavior of the Dirac operator in instanton backgrounds.
Comments: 4 pages, 4 figures, Revtex