Track Segments in Hadronic Showers: Calibration Possibilities for a Highly Granular HCAL

TL;DR

This paper explores the use of highly granular calorimeter data to identify track segments within hadronic showers, enabling cell-by-cell calibration without muons, demonstrating advanced imaging and calibration potential for future particle detectors.

Contribution

It introduces a method to identify track segments in hadronic showers for calibration purposes using a highly granular calorimeter, without relying on muons.

Findings

Successful identification of track segments within hadronic showers.

Potential for cell-by-cell calibration without muons.

Demonstrated imaging capabilities of the calorimeter.

Abstract

The CALICE collaboration has constructed a highly granular hadronic calorimeter based on small scintillator tiles read out with silicon photomultipliers. With this detector, data was taken at CERN and at Fermilab. The high granularity of the detector allows the identification of minimum-ionizing track segments within hadronic showers, demonstrating the imaging capabilities of particle flow calorimeters. These tracks can be used for the cell-by-cell calibration of such a calorimeter. The possibility to calibrate a complete ILC calorimeter with such track segments in the absence of muons is also investigated.