CLAS physics database search results Measurement E1M750 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 3.0620399 0.28400433 108 2.946018 0.13836996 180 3.274606 0.15779015 251.99998 3.1021211 0.17969437 324 3.2610409 0.41359815