CLAS physics database search results Measurement E216M855 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 0.183501 0.0231222 0.0310941 27 0.188556 0.0250976 0.02812239 45 0.178995 0.0144138 0.02364574 63 0.210309 0.0222483 0.02145513 81 0.271202 0.0377556 0.03137122 99 0.328651 0.0207658 0.03026397 117 0.424783 0.0390928 0.03346167 135 0.393571 0.0267921 0.03348238 153 0.456207 0.0278588 0.03806054 171 0.407154 0.0482931 0.04117429