CLAS physics database search results Measurement E216M999 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 0.185278 0.0281595 0.02729394 27 0.132396 0.0163973 0.02453097 45 0.114076 0.021366 0.02459965 63 0.153139 0.0169745 0.02081008 81 0.164151 0.0169958 0.01848529 99 0.27732 0.0556246 0.0418655 117 0.273186 0.0210867 0.02200573 135 0.292507 0.0412258 0.03140224 153 0.526131 0.0469479 0.04685798 171 0.557781 0.0665528 0.07937165