Quark Condensate and Effective Action from Dyson--Schwinger Equations
High Energy Physics - Phenomenology
2009-12-12 v1 Nuclear Theory
Abstract
We obtain the QCD quark condensate from consideration of unquenched quark dynamics in Dyson-Schwinger gluon vacuum. We consider the non-local extension of the condensate and determine the quark virtuality. We also obtain the condensate-driven contribution of the non-perturbative QCD to Euler--Heisenberg Lagrangian of QED in external electromagnetic fields.
Keywords
Cite
@article{arxiv.0912.1753,
title = {Quark Condensate and Effective Action from Dyson--Schwinger Equations},
author = {A. V. Zayakin and V. Khandramai and J. Rafelski},
journal= {arXiv preprint arXiv:0912.1753},
year = {2009}
}
Comments
9 pages, 10 figures