CLAS physics database search results Measurement E1M778 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 9.6608582 2.1709948 27 11.27334 1.1373017 45 10.11016 0.94535542 63 8.7017136 0.71241117 81 7.3970909 0.47060248 98.99999 8.0608521 0.45749506 117 8.5191936 0.81126106 135 6.8986878 0.5106858 153 8.5194941 1.0989078 171 6.8682923 0