CLAS physics database search results Measurement E159M352 E1-6 V. Burkert 2001 psi(pi+) dsigma/dpsi_pip Data errors deg mcb/rad mcb/rad 30 0.894407 0.122692 90 0.893311 0.120643 150 0.986573 0.131055 210 0.959978 0.128679 270 0.903825 0.121931 330 0.980999 0.134441