CLAS physics database search results Measurement E1M535 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 theta(pi+) dsigma/d(−cos(theta_pip)) Stat. error deg mcbn/rad mcbn/rad 9 13.93209 2.8287809 27 14.450696 1.4433372 45 12.250788 1.2761917 63 9.2127352 0.46498844 81 9.5078955 0.5243122 98.99999 9.9182854 0.43800777 117 9.9460621 0.55222058 135 9.0962734 0.49927258 153 11.046932 1.0121959 171 8.4564905 0