CLAS physics database search results Measurement E216M988 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 0.28249 0.0461513 0.05723114 27 0.352497 0.0431555 0.03126639 45 0.193799 0.0413511 0.02826691 63 0.273235 0.0313662 0.0275923 81 0.304102 0.0395953 0.0355532 99 0.248133 0.0217064 0.02382755 117 0.149417 0.01757 0.01992598 135 0.224049 0.024831 0.02488285 153 0.165576 0.0224912 0.02764809 171 0.183304 0.0275358 0.02523857