The events are given as 4-vectors : Energy, Px,Py,Pz

The events are available as the acceptance corrected Dalitz plot with 1182 cells.

The particles are counted as 1- eta, 2-pi, 3-eta and the data are given as:

1182

s12 s23 s13 Fraction_of_cell_aria Events Error

……………..

Here s12, s23 and s13 are invariant energies squared of the two meson system (MeV²)

and Fraction_of_cell_area is the ratio of cell area to area of a largest cell.

For these data Fraction_of_cell_area=1: all cells at the boundary are taken out.

The background level for these events is less then 1%.