CLAS physics database search results Measurement E62M68 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Data errors deg mcbn/rad mcbn/rad 36 1.4756967 0.22091047 108 1.7236587 0.21839896 180 2.493623 0.35423139 251.99998 1.5313976 0.22766271 324 1.6910907 0.34023994