CLAS physics database search results Measurement E216M311 CLAS12 Run Group A Krishna Chandra 2018 psi(pi+) dsigma/dpsi_pip Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.533718 0.0132298 0.06153365 54 0.526834 0.0305402 0.06202297 90 0.55223 0.0317298 0.05612945 126 0.658825 0.0195141 0.06539978 162 0.710153 0.0222894 0.06720542 198 0.699185 0.0202098 0.0691701 234 0.616571 0.0162733 0.06103481 270 0.559954 0.0146894 0.05533128 306 0.535945 0.0223417 0.06499098 342 0.557122 0.0256622 0.06539285