CLAS physics database search results Measurement E216M898 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 0.233926 0.075892 0.02945216 27 0.129499 0.0331844 0.02610938 45 0.0881716 0.0234981 0.01379558 63 0.0847219 0.0167386 0.01440556 81 0.0822094 0.0141596 0.009976 99 0.110364 0.0161241 0.01241873 117 0.11357 0.0169281 0.01534887 135 0.0887533 0.0184156 0.01311583 153 0.0821504 0.022479 0.01088756 171 0.102989 0.0346593 0.018648