Structure of the orbital excited $N^{\ast }$ from the Schwinger-Dyson equations

Abstract

We present progress in the evaluation of ${\gamma }^{\ast }N\to N^{\ast }(1535)$ transition form factors in a quark-diquark picture of these baryons. Our analysis is based upon the fully-consistent treatment of a vector $\times$ vector contact interaction, embedded in the interlaced formalism of Schwinger-Dyson and Bethe-Salpeter equations.

Comments: 9 pages, 3 figures