Baby steps beyond rainbow-ladder
High Energy Physics - Phenomenology
2009-05-18 v1
Abstract
We discuss the impact of including corrections beyond single gluon exchange in light mesons within the nonperturbative framework of Dyson-Schwinger equations (DSE) and Bethe-Salpeter equations (BSE). We do this by considering unquenching effects in the form of hadronic resonance contributions, notably pion exchange, and by the inclusion of the dominant gluon self-interactions to the quark-gluon vertex. Thus we make steps towards an ab initio description of light mesons by functional methods.
Keywords
Cite
@article{arxiv.0905.2511,
title = {Baby steps beyond rainbow-ladder},
author = {Richard Williams and Christian S. Fischer},
journal= {arXiv preprint arXiv:0905.2511},
year = {2009}
}
Comments
6 pages,1 figure. Based on a talk given at ExcitedQCD 09, Feb 8-14, Zakopane, Poland