Charged pion simulation validation with ATLAS Fe/Scintillator hadronic calorimeter: response

Pion response vs. energy of incident pions at |eta|=0.35 and comparison with Geant4.

Measurements were taken with many calorimeter modules and the response of each is normalized to the mean response at the common energy of 180 GeV. Open squares represent Geant4.8.3 Monte Carlo simulations, with QGSP and Bertini intranuclear cascade models.
References:   ATL-TILECAL-PUB-2009-002, NIM A 606 (2009) 362-394

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