CLAS physics database search results Measurement E62M764 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 1.481527 0.36661839 108 1.9485559 0.22617729 180 3.1895697 0.51652908 251.99998 2.3474276 0.27511945 324 1.5535887 0.1995513