CLAS physics database search results Measurement E216M549 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 0.422232 0.0668535 0.08335843 27 0.33771 0.0372004 0.05747634 45 0.483838 0.0894365 0.082275 63 0.518833 0.0867173 0.04754696 81 0.484081 0.0228786 0.04460053 99 0.587007 0.0344641 0.04549746 117 0.596649 0.0260174 0.04670714 135 0.586695 0.0251945 0.05151674 153 0.660358 0.0342923 0.05234222 171 0.564952 0.0579203 0.05281102