CLAS physics database search results Measurement E216M620 CLAS12 Run Group A Krishna Chandra 2018 theta(pi+) dsigma/d(−cos(theta_pip)) Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 9 1.10763 0.0598734 0.0873992 27 0.98708 0.0320294 0.07523499 45 0.826998 0.0233788 0.06207997 63 0.720145 0.0214569 0.05582395 81 0.69222 0.0238541 0.05260204 99 0.751404 0.0276174 0.05226773 117 0.59689 0.020921 0.04542685 135 0.503454 0.01922 0.0594212 153 0.467751 0.0283417 0.07881776 171 0.467483 0.00172398 0.24421954