Distribution amplitudes and electroproduction of the delta and other low-lying resonances

Calculations are presented of certain moments of the wave function of the Δ and of the lowest-lying negative-parity resonances. These are used to obtain model distribution amplitudes for these resonances and to calculate the size of the high-$Q^2$ nucleon-resonance transition amplitude for each case. The I=(3/2 resonances are less asymmetric than the I=(1/2 ones, and indeed are compatible with total symmetry and even with being asymptotic; the agreement between calculation and measurement is good for the $S_{11}$(1535) transition amplitude although inconclusive for the Δ. (For the isoquartet negative-parity ground state, the data presently hardly exist.)