CLAS physics database search results Measurement E216M592 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 0.901352 0.0627132 0.09954644 27 0.83074 0.0398448 0.07260328 45 0.821246 0.0335702 0.0742369 63 0.851303 0.028069 0.0665239 81 0.862677 0.0364747 0.06397896 99 0.675094 0.0214024 0.05190875 117 0.642698 0.0259806 0.05343411 135 0.539262 0.0271076 0.04939381 153 0.598993 0.0252669 0.05533354 171 0.673533 0.0560019 0.10848266