Use of a modified Woods--Saxon potential between a quark and a diquark

The electroproduction processes ep→eN* have been studied extensively in nonrelativistic quark models by many authors. But none of these results is in complete agreement with experimental data. In this note we will show that if a modified Woods-Saxon potential $-\frac{V_0[\frac{r}{b}+1]}{\frac{r}{b}+e^{\frac{(r-R)}{a}}}$ is used between a quark and a diquark, then predictions of the two-body baryon model proposed by the present author agree with the experimental data on the cross sections for the elastic and electroproduction processes of the first, second, and third resonances.