CLAS physics database search results Measurement E213M356 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 4.7813 0.2332 0.506 0.7136 27 3.7944 0.2835 0.4242 0.5994 45 3.2686 0.2028 0.4196 0.5957 63 3.1021 0.173 0.3848 0.4219 81 2.812 0.1624 0.3539 0.3893 99 3.0543 0.1217 0.3725 0.3919 117 3.0049 0.1117 0.3752 0.3915 135 2.55 0.1519 0.3998 0.5669 153 1.9296 0.1401 0.6394 0.9047 171 2.7167 0.0064 1.5736 2.2274