# Tracking within Hadronic Showers in the CALICE SDHCAL prototype using a Hough Transform Technique

## TL;DR

This paper presents a method using a Hough Transform to identify track segments within hadronic showers in the high-granularity CALICE SDHCAL calorimeter, aiding in shower analysis and model validation.

## Contribution

The paper introduces an adapted Hough Transform technique for extracting track segments in dense hadronic showers within the SDHCAL, improving shower reconstruction and model discrimination.

## Key findings

- Effective identification of track segments in hadronic showers.
- Enhanced comparison between data and simulation models.
- Potential for improved energy reconstruction in calorimetry.

## Abstract

The high granularity of the CALICE Semi-Digital Hadronic CALorimeter (SDHCAL) provides the capability to reveal the track segments present in hadronic showers. These segments are then used as a tool to probe the behaviour of the active layers in situ, to better reconstruct the energy of these hadronic showers and also to distinguish them from electromagnetic ones. In addition, the comparison of these track segments in data and the simulation helps to discriminate among the different shower models used in the simulation. To extract the track segments in the showers recorded in the SDHCAL, a Hough Transform is used after being adapted to the presence of the dense core of the hadronic showers and the SDHCAL active medium structure.