The gamma-N -> Delta transition in chiral effective-field theory

Abstract

We describe the pion electroproduction processes in the $\Delta$(1232)-resonance region within the framework of chiral effective-field theory. By studying the observables of pion electroproduction in a next-to-leading order calculation we are able to make predictions and draw conclusions on the properties of the $N\to \Delta$ electromagnetic form factors.

arXiv comment9 pages, 7 figures; prepared for the proceedings of "Shapes of Hadrons" workshop, Athens, Greece, 25-30 April 2006