CLAS physics database search results Measurement E1M704 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 2.3793523 0.16467556 108 3.2575319 0.19142702 180 4.06429 0.19856168 251.99998 2.9996598 0.14856201 324 2.1854968 0.15407637