- the Histograms we are interested, dN/dE (-> number of events as function of energy), are better plotted in 1D. The second dimension, eta, is already there since we have many of those histograms (..._bin1, bin2, etc.) and each bin is one eta bin.
Next step:
- goal: find the energy-threshold below which mostly background (emtpy-BX) are in each eta-bin.
- plot (with your macro) all dN/dE spectra in each eta-bin on top of each other (in just with Draw("same") ) for ZeroBias, MC, and EmtpyBX.
- From those plots we should be able to directly determine the Energy threshold in each eta-bin.
