CLAS physics database search results Measurement E216M655 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 0.426608 0.087325 0.06809749 27 0.371518 0.0329831 0.03691289 45 0.277774 0.0212208 0.0273832 63 0.291896 0.0221352 0.02552707 81 0.204418 0.0149467 0.01817427 99 0.32275 0.0829118 0.0781397 117 0.229514 0.0197879 0.02413039 135 0.322331 0.0310488 0.05619085 153 0.281451 0.055472 0.04490755 171 0.309499 0.0417474 0.02993819