CLAS physics database search results Measurement E216M907 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 0.0787133 0.0316618 0.01724823 27 0.111832 0.0271188 0.01829307 45 0.12217 0.0216283 0.01890606 63 0.113022 0.0186306 0.01196911 81 0.0957698 0.0155547 0.01067642 99 0.0860276 0.0126116 0.01138611 117 0.0986641 0.0145653 0.01331089 135 0.0958339 0.0179901 0.01235335 153 0.132404 0.0257881 0.02047728 171 0.135788 0.0349189 0.02779714