ELECTRO-EXCITATION AMPLITUDES OF THE DELTA-ISOBAR IN THE SKYRME MODEL

Electro magnetic transition form factors for the excitation of the Del ta 33-resonance are evaluated in the Skyrme model. They crucially rely on rotationally induced deformations of the hedgehog soliton which ar e suppressed by two N-C-orders as compared to the leading parts of the isovector current. Partial photon coupling through vector mesons is i ncluded in a schematic way. Recoil corrections are approx imated by a boost to the equal-velocity frame. The results for the photodecay ampl itudes agree with experimental numbers and the shapes of M1, E2, C2-tr ansition form factors show essential features as observed in electro-e xcitation experiments.