CLAS physics database search results Measurement E159M551 E1-6 V. Burkert 2001 psi(p) dsigma/dpsi_pr Stat. error deg mcb/rad mcb/rad 30 0.800497 0.138114 90 0.593379 0.0951655 150 0.788774 0.123283 210 0.796986 0.126798 270 0.750009 0.123599 330 0.812592 0.127932