CLAS physics database search results Measurement E216M972 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 0.124205 0.0222813 0.04892883 27 0.126478 0.0327313 0.02344313 45 0.14346 0.0247981 0.03870672 63 0.171356 0.0151796 0.01915515 81 0.29849 0.063767 0.05187728 99 0.304122 0.0306922 0.027775 117 0.345296 0.035136 0.0318645 135 0.347319 0.0300453 0.0319709 153 0.330715 0.0343733 0.03379572 171 0.419654 0.0689569 0.03809661