CLAS physics database search results Measurement E216M601 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 0.85766 0.0844853 0.09171631 27 0.989528 0.0555446 0.08220029 45 0.916476 0.0319469 0.0679331 63 0.903397 0.0327433 0.07248485 81 0.8215 0.0442239 0.07056158 99 0.704528 0.0266521 0.05407141 117 0.627378 0.022274 0.04769308 135 0.564554 0.0271286 0.04575007 153 0.582588 0.041455 0.06641264 171 0.783199 0.0715414 0.09926447