Total Npe based energy reconstruction

So far, we used total Npe for the EHE analysis.

Although we didn't explicitly reconstruct the event energy, here I tried to reconstruct the energy in order to compare the energy resolution with the one got by the channel-wise Npe reconstruction.

Below is the plot to show the relation between Npe and the energy.

In order to estimate the energy from Npe, I got the relation between energy and npe as below.

The relation is derived as below.

[log10(Estimated energy)] = -3.89 + 5.77*[log10(Npe)] - 1.20*[log10(Npe)]^2 + 0.0999*[log10(Npe)]^3

The results

reconstructed energy resolution black: no dist cut blue: dist<500m	reconstructed energy resolution Vs distance
reconstructed energy Vs true energy (no dist cut)	reconstructed energy Vs true energy (dist<500m)
reconstructed energy resolution Vs true energy (no dist cut)	reconstructed energy resolution Vs true energy (dist<500m)
reconstructed energy resolution Vs zenith angle (no dist cut)	reconstructed energy resolution Vs zenith angle (dist<500m)

The summary

To summarize, I show again two plots.

The energy resolution by the channel-wise Npe is definitely better than one just using total Npe. (factor ~2)

reconstructed energy resolution by Npe black: no dist cut blue: dist<500m

reconstructed energy resolution by channel-wise Npe (with lightsaber, FADC) with hyperreco as the seed black: no dist cut blue: dist<500m