Hadron shower decomposition in the highly granular CALICE analogue hadron calorimeter
The CALICE Collaboration: G. Eigen, T. Price, N. K. Watson, J. S., Marshall, M. A. Thomson, D. R. Ward, D. Benchekroun, A. Hoummada, Y., Khoulaki, J. Apostolakis, A. Dotti, G. Folger, V. Ivantchenko, A. Ribon, V., Uzhinskiy, J. -Y. Hostachy, L. Morin, E. Brianne, A. Ebrahimi
TL;DR
This study analyzes the spatial development of hadronic showers in a highly granular calorimeter using test beam data and simulations, providing detailed parametrizations and comparisons for pions and protons.
Contribution
It introduces a detailed parametrization of hadron shower development in a highly granular calorimeter and compares data with multiple Geant4 physics lists.
Findings
Good agreement between data and simulations for shower profiles
Parameters for hadron types are extracted and compared
Response ratios like h/e are estimated from the data
Abstract
The spatial development of hadronic showers in the CALICE scintillator-steel analogue hadron calorimeter is studied using test beam data collected at CERN and FNAL for single positive pions and protons with initial momenta in the range from 10 to 80 GeV/c. Both longitudinal and radial development of hadron showers are parametrised with two-component functions. The parametrisation is fit to test beam data and simulations using the QGSP_BERT and FTFP_BERT physics lists from Geant4 version 9.6. The parameters extracted from data and simulated samples are compared for the two types of hadrons. The response to pions and the ratio of the non-electromagnetic to the electromagnetic calorimeter response, h/e, are estimated using the extrapolation and decomposition of the longitudinal profiles.
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