Extraction of h/e and calorimeter response from fits to the longitudinal shower profiles in the CALICE Sc-Fe AHCAL

The response to pions and the ratio of the non-electromagnetic to the electromagnetic calorimeter response, h/e, are estimated using the extrapolation of the longitudinal profiles in the CALICE Fe-AHCAL. The longitudinal development of showers, induced by positive pions with initial energies 10–80 GeV, are parametrised with a two-component function. The extracted values of h/e are compared with the results obtained from the power-law approximation. The calorimeter response estimated from the extrapolation of the longitudinal profile is compared to that extracted using the combined CALICE calorimeter. The comparison of test beam data with simulations using the QGSP BERT and FTFP BERT physics lists from Geant4 version 9.6p01 is discussed.