CLAS physics database search results Measurement E216M621 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 0.716539 0.0672906 0.10857245 27 0.569118 0.0427169 0.0632169 45 0.436717 0.0253171 0.04107145 63 0.444139 0.0236729 0.03903329 81 0.564735 0.0428462 0.04300829 99 0.686063 0.0229212 0.05382237 117 0.762359 0.0246966 0.05651068 135 0.90841 0.0300282 0.06937271 153 1.24161 0.0409816 0.09404781 171 1.65065 0.0749165 0.12922654