CLAS physics database search results Measurement E216M979 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 0.521403 0.0781024 0.07267904 27 0.337914 0.040699 0.03521272 45 0.280557 0.034739 0.10529 63 0.288914 0.037254 0.02632573 81 0.261563 0.0227064 0.0265306 99 0.248797 0.0192392 0.02168809 117 0.203039 0.0177705 0.02254689 135 0.182063 0.0203547 0.01934437 153 0.157286 0.0327227 0.02499594 171 0.19951 0.0296542 0.03081514