CLAS physics database search results Measurement E216M880 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 0.613248 0.0716182 0.11919977 27 0.381286 0.0374416 0.03993105 45 0.347988 0.0260288 0.03018087 63 0.291871 0.0200106 0.02675304 81 0.23659 0.024932 0.02382226 99 0.220068 0.0190414 0.02348582 117 0.194591 0.0122262 0.0204914 135 0.184258 0.0146153 0.01849802 153 0.181685 0.0135302 0.02157253 171 0.23853 0.0262574 0.03115075