CLAS physics database search results Measurement E159M406 E1-6 V. Burkert 2001 psi(pi+) dsigma/dpsi_pip Data errors deg mcb/rad mcb/rad 30 0.763649 0.108398 90 0.823019 0.121798 150 0.942723 0.13249 210 0.884555 0.126095 270 0.703759 0.101625 330 0.754213 0.108986