pi^0$-electroproduction on hydrogen near threshold at four-momentum transfers of 0.2, 0.4 and 0.6 $GeV^2

The reaction e + p → e + π 0 + p was measured near the one pion threshold, detecting the final electron and proton in coincidence for values of q 2 = 0.2, 0.4 and 0.6 GeV 2 . The slope of the cross section at threshold is determined. The data are compared with those of the e + p → e + π + + n reaction, measured simultaneously, and with the results of pseudovector Born approximation and with dispersion theoretical calculations.