Quenched QCD with fixed-point and chirally improved fermion
High Energy Physics - Lattice
2008-11-26 v1
Abstract
In this contribution we present results from quenched QCD simulations with the parameterized fixed-point (FP) and the chirally improved (CI) Dirac operator. Both these operators are approximate solutions of the Ginsparg-Wilson equation and have good chiral properties. We focus our discussion on observables sensitive to chirality. In particular we explore pion masses down to 210 MeV in light hadron spectroscopy, quenched chiral logs, the pion decay constant and the pion scattering length. We discuss finite volume effects, scaling properties of the FP and CI operators and performance issues in their numerical implementation.
Keywords
Cite
@article{arxiv.hep-lat/0209099,
title = {Quenched QCD with fixed-point and chirally improved fermion},
author = {Christof Gattringer and Meinulf Göckeler and Peter Hasenfratz and Simon Hauswirth and Kieran Holland and Thomas Jörg and K. J. Juge and C. B. Lang and Ferenc Niedermayer and P. E. L. Rakow and Stefan Schaefer and Andreas Schäfer},
journal= {arXiv preprint arXiv:hep-lat/0209099},
year = {2008}
}
Comments
Lattice2002(chiral), 17 pages, 21 figures, (LaTeX style file espcrc2.sty and AMS style files)