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Re: Energy correction for gammas [message #7581 is a reply to message #7578] Sun, 30 November 2008 20:55 Go to previous messageGo to previous message
Johan Messchendorp is currently offline  Johan Messchendorp
Messages: 693
Registered: April 2007
Location: University of Groningen
first-grade participant

From: *

I ran this weekend simulations with more than two million photon events (boxgenerator, G3&G4) with only the EMC as geometry using the Nov08 release of PandaRoot. I looked at the averaged deposited energy (note: cluster energy!) with respect to the incident photon energy for bins over the full range in polar angle (0-180 degrees, 62 bins) and for an incident energy interval from 0-15 GeV in 34 bins (binning inhomogeously chosen according to variations in the response). The results, e.g. mean cluster energy/incident photon energy, for G3 are depicted in the figure. In the attached root file, you can find the corresponding 2D histogram together with a simulation using G4 and simulations for the Slashlyk calorimeter. In principle, one could use this file to correct the data accordingly. If there is a need for other information, let me know.

Kind wishes,


[Updated on: Wed, 03 December 2008 00:21]

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