CLAS physics database search results Measurement E216M628 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 1.40635 0.0799468 0.16381936 27 1.09614 0.0448013 0.09081967 45 0.824367 0.0433831 0.0647691 63 0.727702 0.0248046 0.05379181 81 0.649593 0.0266188 0.05069158 99 0.537768 0.0194118 0.04805324 117 0.55126 0.0263462 0.04218732 135 0.482708 0.0223374 0.03879159 153 0.53145 0.0275235 0.05182654 171 0.654484 0.0462608 0.09266755