CLAS physics database search results Measurement E213M212 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 2.7584 0.216 0.4618 0.5098 27 2.7728 0.135 0.3975 0.4198 45 2.8052 0.1695 0.4707 0.5003 63 2.5317 0.1334 0.4074 0.4287 81 2.3881 0.0898 0.3701 0.3809 99 2.5284 0.1194 0.3894 0.4073 117 2.5157 0.1121 0.4259 0.4404 135 2.5783 0.188 0.6461 0.9151 153 2.2281 0.0483 1.35 1.9151 171 2.2851 0.0039 1.4246 2.0142