CLAS physics database search results Measurement E216M358 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 2.66358 0.136538 0.2869397 27 2.19029 0.0832127 0.17994736 45 1.95459 0.052659 0.14657306 63 1.64995 0.0424437 0.12726735 81 1.61905 0.0885563 0.12109315 99 1.43411 0.0619125 0.20235925 117 1.18192 0.0332993 0.09041389 135 1.13326 0.0311347 0.10987697 153 1.46961 0.110522 0.16124847 171 1.80465 0.099795 0.31730954