Lattice fermions with complex mass
High Energy Physics - Lattice
2009-11-11 v3
Abstract
We present evidence in the Schwinger model that rooted staggered fermions may correctly describe the m<0 sector of a theory with an odd number of flavors. We point out that in QCD-type theories with a complex-valued quark mass every non-chiral action essentially "borrows" knowledge about the theta-transformation properties from the overlap action.
Keywords
Cite
@article{arxiv.hep-lat/0604005,
title = {Lattice fermions with complex mass},
author = {Stephan Durr and Christian Hoelbling},
journal= {arXiv preprint arXiv:hep-lat/0604005},
year = {2009}
}
Comments
8 pages, 4 figures. v2: eqn. (20) corrected, figs. 3,4 adjusted, conclusions unchanged. v3: text improved, 2 refs. added (version to appear in PRD)