Electromagnetic Form Factors of Meson Transitions

Details Electromagnetic Form Factors of Meson Transitions Electromagnetic Form Factors of Meson Transitions

1999-02-24

arxiv.org/abs/hep-ph/9902459v1

Fizika B8:295-302,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contribution to the International Conference on Nuclear and Particle Physics with CEBAF at Jefferson Lab, Dubrovnik, Croatia,

Scientific paper

Within the Dyson-Schwinger equation approach to modeling QCD for meson physics, we present new results for $g_{\rho\pi\pi}$ and the coupling constants and form factors for the transitions $\gamma^\ast \pi \rho$ and $\gamma^\ast \pi^0 \gamma$. We discuss the role of the sub-dominant covariants of the $\pi$ Bethe-Salpeter amplitude and investigate the asymptotic behavior of the $\gamma^\ast \pi^0 \gamma$ form factor.

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