CLAS physics database search results Measurement E62M680 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Data errors deg mcbn/rad mcbn/rad 36 2.460804 0.28306407 108 2.8644857 0.31298935 180 3.8626609 0.66452539 251.99998 2.9778733 0.336952 324 2.3509941 0.26921532