CLAS physics database search results Measurement E216M394 CLAS12 Run Group A Krishna Chandra 2018 theta(pi-) dsigma/d(−cos(theta_pim)) Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 9 0.833123 0.0974365 0.14496015 27 0.690226 0.0673408 0.08975349 45 0.662032 0.0698313 0.08267438 63 0.585722 0.0315187 0.0546733 81 0.509045 0.0299663 0.07238797 99 0.471181 0.0299627 0.05481517 117 0.58923 0.0661154 0.04962686 135 0.547343 0.0357969 0.04682715 153 0.643828 0.0411882 0.05438203 171 0.701911 0.0581295 0.07110368