CLAS physics database search results Measurement E159M369 E1-6 V. Burkert 2001 psi(pi-) dsigma/dpsi_pim Data errors deg mcb/rad mcb/rad 30 0.802532 0.113405 90 0.851455 0.122268 150 0.932451 0.131077 210 0.943614 0.131311 270 0.805722 0.112322 330 0.784149 0.109946