CLAS physics database search results Measurement E62M776 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 2.0011387 0.27960473 108 2.9567194 0.44105282 180 3.3607695 0.35864732 251.99998 2.5021 0.35449266 324 2.1797168 0.31128401