CLAS physics database search results Measurement E1M680 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 2.0471997 0.14270794 108 2.8507543 0.20519502 180 3.8413892 0.21576904 251.99998 3.011837 0.23042159 324 1.9820684 0.13809288