CLAS physics database search results Measurement E1M355 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 2.5934927 0.18130401 108 3.3581917 0.25138596 180 4.8704624 0.21021132 251.99998 3.1394775 0.1905338 324 2.4802115 0.17416185