Baby steps beyond rainbow-ladder

Details Baby steps beyond rainbow-ladder Baby steps beyond rainbow-ladder

2009-05-15

arxiv.org/abs/0905.2511v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages,1 figure. Based on a talk given at ExcitedQCD 09, Feb 8-14, Zakopane, Poland

Scientific paper

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.

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