CLAS physics database search results Measurement E62M20 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Data errors deg mcbn/rad mcbn/rad 36 5.3017297 0.40235767 108 7.050004 0.57046354 180 7.4317613 0.30332831 251.99998 6.3852954 0.3270967 324 5.4056702 0.42164063