CLAS physics database search results Measurement E216M837 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 0.230375 0.0317446 0.03826145 27 0.195824 0.0194845 0.0448972 45 0.237972 0.0222438 0.02568632 63 0.211204 0.0133031 0.023054 81 0.294284 0.0175309 0.02973475 99 0.350914 0.0199443 0.0296921 117 0.318899 0.0190601 0.0265319 135 0.311641 0.0188181 0.02797469 153 0.297217 0.0418227 0.03195072 171 0.401855 0.0488098 0.03529708