CLAS physics database search results Measurement E216M925 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 0.175899 0.0460541 0.05699108 27 0.128674 0.0625539 0.04482828 45 0.186633 0.0259898 0.01659786 63 0.147498 0.0185453 0.01349933 81 0.151686 0.0301759 0.01286304 99 0.105196 0.0131908 0.01096019 117 0.0865155 0.0099962 0.01148066 135 0.0826491 0.0110463 0.01208488 153 0.0641588 0.0340112 0.01326923 171 0.101457 0.0238 0.01927528