CLAS physics database search results Measurement E213M185 E1-6, 2025 R.W. Gothe, A. Trivedi 2001 theta(pi+) dsigma/d(−cos(theta_pip)) Stat. error Syst. error Total error deg mcb/rad mcb/rad mcb/rad mcb/rad 9 3.8196 0.3002 0.5257 0.7396 27 3.7886 0.1558 0.4645 0.6507 45 3.2663 0.1693 0.4178 0.4508 63 2.8924 0.1499 0.3881 0.416 81 2.8726 0.1107 0.3652 0.3816 99 2.5426 0.1823 0.3373 0.3835 117 2.8219 0.1914 0.4579 0.4963 135 2.5265 0.1862 0.7757 0.7977 153 2.7028 0.0408 1.6396 2.3196 171 2.5927 0.005 1.5901 2.2522