CLAS physics database search results Measurement E216M745 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 0.868054 0.0585786 0.08894019 27 0.642983 0.0390947 0.05868316 45 0.58733 0.0278667 0.05354735 63 0.549709 0.0339737 0.04223145 81 0.487908 0.0237963 0.04009501 99 0.402091 0.0155841 0.03138372 117 0.328263 0.0145325 0.02799725 135 0.305091 0.016223 0.0296508 153 0.323322 0.0236752 0.03373825 171 0.355578 0.0249197 0.04610592