CLAS physics database search results Measurement E1M431 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 13.932454 2.2436764 27 15.320618 2.01807 45 14.223348 1.6391052 63 14.054612 0.89564723 81 11.19265 0.54580152 98.99999 9.7422247 0.37548837 117 10.678808 0.42805034 135 10.625215 0.6222713 153 12.652994 1.5895337 171 9.1498156 0.41840783