CLAS physics database search results Measurement E62M560 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Data errors deg mcbn/rad mcbn/rad 36 1.4153997 0.17053036 108 1.6702685 0.28793725 180 2.5212843 0.34321722 251.99998 2.2430675 0.25589451 324 1.6372207 0.25741175