N Delta - Transition Form Factors at Low Momentum Transfer

G. C. Gellas, T. R. Hemmert, C. N. Ktorides +1

The three complex form factors entering the $\Delta \to N{\gamma }^{\ast }$ vertex are calculated to $\mathcal{O}({\epsilon }^3)$ in the framework of a chiral effective theory with explicit $\Delta$(1232) degrees of…