CLAS physics database search results Measurement E216M558 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 0.465305 0.0688561 0.1123231 27 0.514401 0.0579309 0.07395053 45 0.504941 0.0391158 0.06078968 63 0.599001 0.039791 0.05955102 81 0.680402 0.0261338 0.06044449 99 0.795746 0.0293687 0.06463854 117 0.799846 0.0347848 0.05936897 135 0.806973 0.0374471 0.0641865 153 0.732832 0.0425331 0.06889262 171 0.844132 0.0670936 0.07216155