CLAS physics database search results Measurement E1M166 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 1.9487576 0.54903328 108 2.1453333 0.25743809 180 3.01807 0.44227135 251.99998 2.1826017 0.42741892 324 1.9094561 0.38114506