Form factors of excited baryons at highQ2and the transition to perturbative QCD. II

Transition form factors have been extracted from available electron scattering data in the $Q^2$ range 1-21 Ge$\mathrm{V}2\mathrm{}$/${\mathit{c}}^2$ for the first, second, and third resonances at $W=1232, 1535, \mathrm{and} 1680$ MeV. The transition form factors for the second and third resonances appear to approach a $Q^{-4\mathrm{}}$ dependence expected from leading-order perturbative QCD. However, the $\Delta \mathrm{}\left(1232\right)\mathrm{}$ transition form factor decreases faster than $Q^{-4\mathrm{}}$, which would be expected if the leading helicity-½ amplitude is suppressed, and nonleading processes are dominant.