CLAS physics database search results Measurement E216M817 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 0.465464 0.0654352 0.05693835 27 0.339856 0.0684404 0.04594208 45 0.369997 0.0253209 0.03519072 63 0.355423 0.0233725 0.0301917 81 0.414155 0.0410587 0.03914431 99 0.342758 0.0198432 0.03596275 117 0.300198 0.0172817 0.02818665 135 0.263544 0.0210121 0.02526775 153 0.279137 0.0225408 0.03164255 171 0.364235 0.0559369 0.05256864