CLAS physics database search results Measurement E216M844 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 0.29483 0.0420641 0.04757915 27 0.351498 0.0332753 0.03719982 45 0.399872 0.0342197 0.03685699 63 0.365246 0.0227642 0.03117415 81 0.324148 0.0166268 0.02648179 99 0.300872 0.0144985 0.02470436 117 0.210824 0.0129017 0.02375242 135 0.214879 0.0135461 0.02293453 153 0.21383 0.0164709 0.02190571 171 0.222431 0.0369121 0.03358247