CLAS physics database search results Measurement E1M290 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 1.0108343 0.16001266 108 1.1536672 0.18889628 180 2.3652549 0.25324634 251.99998 1.706545 0.40053344 324 1.203036 0.29728976