CLAS physics database search results Measurement E216M148 CLAS12 Run Group A Krishna Chandra 2018 psi(pi-) dsigma/dpsi_pim Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.470313 0.0506304 0.08435341 54 0.55989 0.127965 0.12765584 90 0.392473 0.0185673 0.0386908 126 0.434926 0.0124067 0.03859434 162 0.448091 0.0132931 0.04064145 198 0.465276 0.0157645 0.04092459 234 0.446658 0.0157578 0.03773347 270 0.452162 0.0444664 0.05344548 306 0.437578 0.0335717 0.05074326 342 0.518997 0.088748 0.10566854