Unconverted Photon simulation validation with ATLAS LAr Barrel Calorimeter

Total energy deposited in each compartment of the ATLAS barrel central Pb/liquid Argon calorimeter for unconverted photons in a test-beam run.

Comparison of Geant4 default e.m. physics with 50 GeV photons collected during 2004 ATLAS combined test-beam. The plots show the energy collected in a cluster of fixed size and comparison between Geant4 simulation and data.
Additional information can be found in the Paper: E. Abat et al., Photon reconstruction in the ATLAS Inner Detector and Liquid Argon Barrel Calorimeter at the 2004 Combined Test Beam; 2011 JINST 6 P04001

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