2π0 simulation

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  • Program genScalarRegge: generator for π0π0 events
    • f0(500), f0(980), f0(1370), f2(1270) and "double-regge" background
    • Interference between all resonances and background implemented
    • No baryon backgrounds included
    • Also can generate ηπ0 events
  • Comparison of π0π0 mass distribution generated using genScalarRegge (red) and real data (spring 2020, dark blue)

Pi0pi0comp.png

  • Angular distribution in Gottfried-Jackson frame versus mass for simulation

CosthetaGF mc.png

  • Angular distribution in Gottfried-Jackson frame versus mass for data

CosthetaGF data.png