Concerning the quark condensate
Nuclear Theory
2010-03-04 v1 High Energy Physics - Lattice
High Energy Physics - Phenomenology
Abstract
A continuum expression for the trace of the massive dressed-quark propagator is used to explicate a connection between the infrared limit of the QCD Dirac operator's spectrum and the quark condensate appearing in the operator product expansion, and the connection is verified via comparison with a lattice-QCD simulation. The pseudoscalar vacuum polarisation provides a good approximation to the condensate over a larger range of current-quark masses.
Cite
@article{arxiv.nucl-th/0301024,
title = {Concerning the quark condensate},
author = {K. Langfeld and R. Pullirsch and H. Markum and C. D. Roberts and S. M. Schmidt},
journal= {arXiv preprint arXiv:nucl-th/0301024},
year = {2010}
}
Comments
7 pages, LaTeX2e, revtex4