CLAS physics database search results Measurement E216M513 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 0.261306 0.0437172 0.10013949 27 0.253926 0.0426973 0.064716 45 0.34793 0.115183 0.06540484 63 0.259257 0.0390738 0.04323661 81 0.269324 0.029004 0.03122305 99 0.285893 0.0256986 0.02520203 117 0.312749 0.022033 0.06088087 135 0.367279 0.0268639 0.03126342 153 0.364826 0.0360954 0.03241708 171 0.378118 0.0640937 0.05049561