arXiv:hep-lat/9709157·v1·High Energy Physics — Lattice
Staggered Fermion Actions with Improved Rotational Invariance
B. Beinlich🇩🇪 · A. Bicker🇩🇪 · F. Karsch🇩🇪 · E. Laermann🇩🇪 · A. Peikert🇩🇪
Abstract
We introduce a class of improved actions for staggered fermions which to O(p^4) and O(p^6), respectively, lead to rotationally invariant propagators. We discuss the resulting reduction of flavour symmetry breaking in the meson spectrum and comment on the improvement in the calculation of thermodynamic observables.
Comments: 3 pages and 4 figures, Contribution to Lattice 97 (Poster Session), latex