$\frac{E_{1+}}{M_{1+}}$ and $\frac{S_{1+}}{M_{1+}}$ from an Analysis of $p(e, e^{\prime }p){\pi }^0$ in the Region of the $\Delta \mathrm{}\left(1232\right)\mathrm{}$ Resonance at $Q^2=3.2\mathrm{}$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$

We have analyzed exclusive $p(e, e^{\prime }p){\pi }^0$ data to determine the electromagnetic and scalar transition multipoles in the mass region of the $\Delta \mathrm{}\left(1232\right)\mathrm{}$ at the highest $Q^2$ value where data exist. The ratio of the electric quadrupole and the magnetic dipole transition moments is determined to be $\frac{E_{1+}}{M_{1+}}=0.06\mathrm{}\pm 0.02\pm 0.03$, and for the scalar quadrupole transition we find $\frac{S_{1+}}{M_{1+}}=0.07\mathrm{}\pm 0.02\pm 0.03$. The results rule out that perturbative QCD governs the dynamics of the ${\gamma }_{v}p\Delta$ transition at such $Q^2$. They are more consistent with predictions of relativistic extensions of the nonrelativistic constituent quark model.