CLAS physics database search results Measurement E159M425 E1-6 V. Burkert 2001 psi(p) dsigma/dpsi_pr Data errors deg mcb/rad mcb/rad 30 0.770603 0.128705 90 0.756206 0.117394 150 0.794987 0.124332 210 0.840248 0.140068 270 0.718202 0.113578 330 0.771909 0.120446