Bound states for Overlap and Fixed Point Actions close to the chiral limit
High Energy Physics - Lattice
2014-11-17 v1
Abstract
We study the overlap and the fixed point Dirac operators for massive fermions in the two-flavor lattice Schwinger model. The masses of the triplet (pion) and singlet (eta) bound states are determined down to small fermion masses and the mass dependence is compared with various continuum model approximations. Near the chiral limit, at very small fermion masses the fixed point operator has stability problems, which in this study are dominated by finite size effects,
Keywords
Cite
@article{arxiv.hep-lat/0105013,
title = {Bound states for Overlap and Fixed Point Actions close to the chiral limit},
author = {Stefan Haeusler and C. B. Lang},
journal= {arXiv preprint arXiv:hep-lat/0105013},
year = {2014}
}
Comments
13 pages, 2 figures