Electromagnetic properties of the Δ in the large Nc and chiral limits

Relations between nucleon, Δ and nucleon-Δ electromagnetic properties associated with chiral physics which have been derived in a pure large-Nc limit are greatly modified in a combined large Nc and chiral limits; the large Nc relations are valid for (MΔ-MN)/mπ<<1. The E2/M1 ratio for the nucleon-Δ transition is shown to scale as ε-1 (with ε∼1/Nc, ε∼mπ/Λ with Λ a typical hadronic scale) in the combined large Nc and chiral expansions as opposed to Nc-2 in the pure large Nc expansion