CLAS physics database search results Measurement E216M990 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 0.25181 0.0478137 0.04006861 27 0.167749 0.0303761 0.02288984 45 0.174787 0.0569609 0.02439237 63 0.171394 0.024412 0.01999078 81 0.151204 0.0139498 0.01568493 99 0.25998 0.021665 0.02369019 117 0.316592 0.0263805 0.02743532 135 0.273522 0.0360035 0.02749176 153 0.354172 0.0545908 0.03353363 171 0.467134 0.0582527 0.04289029