CLAS physics database search results Measurement E213M410 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 4.0883 0.2634 0.4976 0.563 27 3.2866 0.1881 0.512 0.5455 45 2.7855 0.1443 0.4236 0.4475 63 2.3226 0.1136 0.4002 0.416 81 2.1106 0.0814 0.329 0.3389 99 2.0809 0.0787 0.3318 0.341 117 2.1894 0.1049 0.3616 0.3765 135 1.7676 0.0986 0.3635 0.3766 153 1.418 0.0935 0.5332 0.5413 171 2.1715 0.0677 1.2336 1.2355