CLAS physics database search results Measurement E1M751 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 2.7412784 0.1546059 108 2.8718936 0.17371684 180 3.137491 0.21791691 251.99998 3.0888462 0.21090239 324 2.9317908 0.19607058