CLAS physics database search results Measurement E62M752 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 1.0863507 0.36678267 108 1.828496 0.30714443 180 2.0361559 0.42100114 251.99998 1.6462132 0.32823816 324 0.96719569 0.15806229