notes (discussion with prof. Tully)

The sum over 3x3 elements seems to be a standard technique.It seems like cristals for both ECAL and HCAL are build in such a way that the energy deposition is mainly within this volume (5x5 is used only for extreme cases).
The values read from ECAL have to be corrected for the calibration (I don't understand if this issue is more or less complicated for ECAL or HCAL).
Anyway the goal of the epxerimental project should be something like:

• implementing the conversion from raw data to energies within CMSSW
• produce files with the energies, so that if you're interested only in these values you don't have to run the whole CMSSW machinery
• try to see how the e/h correction works