CLAS physics database search results Measurement E216M862 CLAS12 Run Group A Krishna Chandra 2018 theta(pi-) dsigma/d(−cos(theta_pim)) Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 9 0.368623 0.0463389 0.04943974 27 0.397857 0.0348885 0.0363632 45 0.343966 0.0251096 0.03117986 63 0.32876 0.0280533 0.02805442 81 0.341093 0.0237153 0.02604016 99 0.277261 0.0233887 0.02683098 117 0.21678 0.0122504 0.02009476 135 0.201773 0.0174387 0.02640721 153 0.16176 0.0243969 0.02262835 171 0.247673 0.0298704 0.03643569