CLAS physics database search results Measurement E216M540 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 0.226205 0.0315139 0.04848314 27 0.326772 0.0824956 0.08952388 45 0.383568 0.0758784 0.07334339 63 0.346904 0.0228672 0.03945859 81 0.416329 0.0439482 0.04230307 99 0.48595 0.0435581 0.0466434 117 0.49138 0.0227738 0.03993478 135 0.622562 0.0542915 0.06612884 153 0.540678 0.0318691 0.04610514 171 0.559439 0.0632784 0.04820211