Testing the fixed-point QCD action and the construction of chiral currents
High Energy Physics - Lattice
2011-07-19 v2
Abstract
We present the first set of quenched QCD measurements using the recently parametrized fixed-point Dirac operator D^FP. We also give a general and practical construction of covariant densities and conserved currents for chiral lattice actions. The measurements include (a) hadron spectroscopy, (b) corrections of small chiral deviations, (c) the renormalized quark condensate from finite-size scaling and, independently, spectroscopy, (d) the topological susceptibility, (e) small eigenvalue distributions and random matrix theory, and (f) local chirality of near-zero modes and instanton-dominance.
Keywords
Cite
@article{arxiv.hep-lat/0205010,
title = {Testing the fixed-point QCD action and the construction of chiral currents},
author = {P. Hasenfratz and S. Hauswirth and K. Holland and T. Jorg and F. Niedermayer},
journal= {arXiv preprint arXiv:hep-lat/0205010},
year = {2011}
}
Comments
50 pages, 19 figures; misprints corrected, discussion on covariant densities extended, new appendix added