CLAS physics database search results Measurement E216M414 CLAS12 Run Group A Krishna Chandra 2018 theta(p) dsigma/d(−cos(theta_pr)) Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 9 0.367459 0.0392797 0.09279378 27 0.450817 0.0438975 0.09285593 45 0.479308 0.0284363 0.07912603 63 0.575307 0.0534076 0.08674674 81 0.914096 0.308642 0.25614402 99 0.632961 0.0247182 0.05469644 117 0.754221 0.029311 0.06322659 135 0.820853 0.0512173 0.07145275 153 0.799937 0.0785418 0.07291685 171 0.827743 0.0646744 0.07311806