CLAS physics database search results Measurement E216M709 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 0.381856 0.0355563 0.04753076 27 0.521075 0.0653156 0.05947014 45 0.496595 0.0527009 0.05879161 63 0.550248 0.0279764 0.04252358 81 0.586234 0.0256437 0.04911708 99 0.463783 0.017256 0.03838653 117 0.412442 0.024051 0.03494239 135 0.35525 0.0189719 0.03236502 153 0.392244 0.0220557 0.0386509 171 0.357308 0.035575 0.04176456