CLAS physics database search results Measurement E62M212 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Data errors deg mcbn/rad mcbn/rad 36 2.4487467 0.27462372 108 3.0398629 0.3478739 180 4.248857 0.36969393 251.99998 2.9551942 0.3704001 324 2.7599461 0.44911739