CLAS physics database search results Measurement E1M736 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 2.9958031 0.16278607 108 3.5825157 0.21200399 180 3.9994898 0.18947501 251.99998 3.5518458 0.22108625 324 3.2244468 0.19365178