CLAS physics database search results Measurement E62M656 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Data errors deg mcbn/rad mcbn/rad 36 1.4926209 0.3550956 108 2.1283216 0.29053053 180 2.6845744 0.41480809 251.99998 1.5692568 0.19057271 324 1.4380686 0.31858993