CLAS physics database search results Measurement E216M504 CLAS12 Run Group A Krishna Chandra 2018 theta(p) dsigma/d(−cos(theta_pr)) Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 9 0.8399 0.0456041 0.12965885 27 0.810147 0.0407315 0.08662834 45 0.664397 0.0426235 0.06768233 63 0.599311 0.0297688 0.05148541 81 0.797528 0.0330311 0.0715194 99 0.954532 0.0288443 0.07310869 117 1.09408 0.030142 0.08920767 135 1.39426 0.0368111 0.11109581 153 1.9413 0.0482658 0.14449092 171 2.65626 0.0883602 0.23014266