CLAS physics database search results Measurement E213M392 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 4.678 0.2278 0.5479 0.5934 27 4.0186 0.2166 0.5292 0.5718 45 2.8918 0.1554 0.4249 0.4524 63 2.4893 0.1546 0.4137 0.4416 81 2.2499 0.1016 0.3416 0.3564 99 2.3489 0.0952 0.3612 0.3735 117 2.245 0.0921 0.3656 0.377 135 2.0159 0.1088 0.3768 0.3922 153 1.7302 0.1085 0.5491 0.5597 171 2.2627 0.0064 1.3322 1.3322