CLAS physics database search results Measurement E1M532 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 2.8220317 0.16750646 108 3.1965334 0.17186484 180 4.1524911 0.23322056 251.99998 3.6393778 0.31574622 324 2.9198668 0.1725798