CLAS physics database search results Measurement E159M362 E1-6 V. Burkert 2001 psi(p) dsigma/dpsi_pr Data errors deg mcb/rad mcb/rad 30 0.843766 0.133258 90 0.837743 0.125759 150 0.858831 0.126438 210 0.902927 0.135088 270 0.811682 0.120971 330 0.802299 0.127414