On the phase structure of twisted mass lattice QCD
High Energy Physics - Lattice
2010-12-23 v1
Abstract
The introduction of a chirally twisted mass term has been proposed as an attractive approach to O(a) improvement of Quantum Chromodynamics with Wilson fermions on a lattice. For numerical simulation projects it is important to know the phase structure of the theory in the region of small quark masses. We study this question in the framework of chiral perturbation theory. Generalizing the analysis of Sharpe and Singleton we find extensions of normal and Aoki phase scenarios and a possible new phase with spontaneous breakdown of chiral symmetry to a discrete .
Keywords
Cite
@article{arxiv.hep-lat/0407006,
title = {On the phase structure of twisted mass lattice QCD},
author = {Gernot Münster},
journal= {arXiv preprint arXiv:hep-lat/0407006},
year = {2010}
}
Comments
10 pages, 6 Postscript figures, LaTeX2e