Mind the gap
Abstract
In this summary of the application of Dyson-Schwinger equations to the theory and phenomenology of hadrons, some deductions following from a nonperturbative, symmetry-preserving truncation are highlighted, notable amongst which are results for pseudoscalar mesons. We also describe inferences from the gap equation relating to the radius of convergence of a chiral expansion, applications to heavy-light and heavy-heavy mesons, and quantitative estimates of the contribution of quark orbital angular momentum in pseudoscalar mesons; and recapitulate upon studies of nucleon electromagnetic form factors.
Cite
@article{arxiv.nucl-th/0612027,
title = {Mind the gap},
author = {M. S. Bhagwat and A. Krassnigg and P. Maris and C. D. Roberts},
journal= {arXiv preprint arXiv:nucl-th/0612027},
year = {2008}
}
Comments
7 pages, 3 figures. Contribution to Proceedings of 4th International Conference on Quarks and Nuclear Physics (QNP06), Madrid, Spain, 5-10 Jun 2006