CLAS physics database search results Measurement E216M529 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 0.744923 0.106573 0.09488507 27 0.584861 0.043481 0.05601277 45 0.579685 0.0405483 0.05120863 63 0.485603 0.03644 0.04542241 81 0.385633 0.030683 0.04258417 99 0.411195 0.0345684 0.04045722 117 0.425006 0.0310362 0.03723503 135 0.470749 0.0648137 0.05961497 153 0.514924 0.042447 0.04240875 171 0.702974 0.0827247 0.07785122