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arXiv · 1802.09775

Electromagnetic transition form factors of baryons in a relativistic Faddeev approach

Reinhard Alkofer·Christian S. Fischer·Helios Sanchis-Alepuz
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Abstract

The covariant Faddeev approach which describes baryons as relativistic three-quark bound states and is based on the Dyson-Schwinger and Bethe-Salpeter equations of QCD is briefly reviewed. All elements, including especially the baryons' three-body-wave-functions, the quark propagators and the dressed quark-photon vertex, are calculated from a well-established approximation for the quark-gluon interaction. Selected previous results of this approach for the spectrum and elastic electromagnetic form factors of ground-state baryons and resonances are reported. The main focus of this talk is a presentation and discussion of results from a recent investigation of the electromagnetic transition form factors between ground-state octet and decuplet baryons as well as the octet-only $\Sigma^0$ to $\Lambda$ transition.

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Reinhard Alkofer, Christian S. Fischer, Helios Sanchis-Alepuz. 2018-02-27. Electromagnetic transition form factors of baryons in a relativistic Faddeev approach. https://doi.org/10.1051/epjconf/201818101013

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