Electroproduction of ϱo-mesons on protons

The electroproduction of transversely polarized ϱo-mesons on protons has been measured detecting the scattered electron and the two decay π-mesons in spark-chamber spectrometers. The differential cross sections dσu/dt and dσu/d(t–tmin) have been determined as functins of W, q2 and t and W, q2 and t−tmin in the kinematical region 2.60 ⩽ W ⩽ 2.95 GeV, −0.12 ⩾ q2 ⩾ −0.40 GeV2/c2, tmin⩾ t ⩾ −0.15 GeV2/c2.