CLAS physics database search results Measurement E1M2 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 0.54173559 0.11815362 108 0.8808226 0.21224099 180 1.3508481 0.28972828 251.99998 0.86072493 0.28232774 324 0.53940874 0.11695489