Shower development of particles with momenta from 15 GeV to 150 GeV in the CALICE scintillator-tungsten hadronic calorimeter

TL;DR

This paper investigates particle showers in a highly granular scintillator-tungsten calorimeter across 15-150 GeV, comparing experimental data with Geant4 simulations to improve understanding of hadronic shower development.

Contribution

It provides detailed measurements of shower development and calorimeter response for various particles, extending the energy range and including comparison with simulation models.

Findings

Calorimeter response varies with particle type and energy.

Energy resolution improves with increasing particle energy.

Simulation models show good agreement with experimental data.

Abstract

We present a study of showers initiated by electrons, pions, kaons, and protons with momenta from 15 GeV to 150 GeV in the highly granular CALICE scintillator-tungsten analogue hadronic calorimeter. The data were recorded at the CERN Super Proton Synchrotron in 2011. The analysis includes measurements of the calorimeter response to each particle type as well as measurements of the energy resolution and studies of the longitudinal and radial shower development for selected particles. The results are compared to Geant4 simulations (version 9.6.p02). In the study of the energy resolution we include previously published data with beam momenta from 1 GeV to 10 GeV recorded at the CERN Proton Synchrotron in 2010.