%0 Journal Article
%T Energy Dependence of the Delta Resonance: Chiral Dynamics in Action
%A Bernstein
%A A. M.
%A Stave
%A S.
%J High Energy Physics - Phenomenology
%D 2007
%I 
%R 10.1007/s00601-007-0190-6
%X There is an important connection between the low energy theorems of QCD and the energy dependence of the Delta resonance in pi-N scattering, as well as the closely related gamma^{*} N -> pi N reaction. The resonance shape is due not only to the strong pi-N interaction in the p wave but the small interaction in the s wave; the latter is due to spontaneous chiral symmetry breaking in QCD (i.e. the Nambu-Goldstone nature of the pion). A brief overview of experimental tests of chiral perturbation theory and chiral based models is presented
%U http://arxiv.org/abs/0710.3387