Flavourful hadronic physics
arXiv:0910.4523 · doi:10.1016/j.nuclphysbps.2010.02.026
Abstract
We review theoretical approaches to form factors that arise in heavy-meson decays and are hadronic expressions of non-perturbative QCD. After motivating their origin in QCD factorisation, we retrace their evolution from quark-model calculations to non-perturbative QCD techniques with an emphasis on formulations of truncated heavy-light amplitudes based upon Dyson-Schwinger equations. We compare model predictions exemplarily for the B\toÏtransition form factor and discuss new results for the g_{D*DÏ} coupling in the hadronic D* decay.
Based on a talk given at Light Cone 2009: Relativistic Hadronic And Particle Physics, 8-13 July 2009, Sao Jose dos Campos, Sao Paulo, Brazil