Photon reconstruction using the Hough transform in imaging calorimeters
Fuente:
arXiv
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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866914376955461632 |
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| author | Zhang, Yang Sun, Shengsen Song, Weizheng Guo, Fangyi Wang, Yuanzhan Wu, Linghui Wang, Yifang |
| author_facet | Zhang, Yang Sun, Shengsen Song, Weizheng Guo, Fangyi Wang, Yuanzhan Wu, Linghui Wang, Yifang |
| contents | Photon reconstruction in calorimeters represents a crucial challenge in particle physics experiments, especially in high-density environments where shower overlapping probabilities become significant. We present an energy-core-based photon reconstruction method. It is achieved through extending the application of the Hough transform to exploit the energy-core structure of photon showers. The method, validated through simulations of the CEPC crystal electromagnetic calorimeter, achieves a reconstruction efficiency of nearly 100% for photons with energies exceeding 2 GeV and a separation efficiency approaching 100% for two 5 GeV photons, when the distance between them reaches the granularity limit of the calorimeter. This energy-core-based photon reconstruction method, integrated with an energy splitting technique, enhances the performance of photon measurement and provides a promising tool for imaging calorimeters, particularly those requiring high precision in photon detection in complex event topologies with high multiplicity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_20728 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Photon reconstruction using the Hough transform in imaging calorimeters Zhang, Yang Sun, Shengsen Song, Weizheng Guo, Fangyi Wang, Yuanzhan Wu, Linghui Wang, Yifang Instrumentation and Detectors High Energy Physics - Experiment Photon reconstruction in calorimeters represents a crucial challenge in particle physics experiments, especially in high-density environments where shower overlapping probabilities become significant. We present an energy-core-based photon reconstruction method. It is achieved through extending the application of the Hough transform to exploit the energy-core structure of photon showers. The method, validated through simulations of the CEPC crystal electromagnetic calorimeter, achieves a reconstruction efficiency of nearly 100% for photons with energies exceeding 2 GeV and a separation efficiency approaching 100% for two 5 GeV photons, when the distance between them reaches the granularity limit of the calorimeter. This energy-core-based photon reconstruction method, integrated with an energy splitting technique, enhances the performance of photon measurement and provides a promising tool for imaging calorimeters, particularly those requiring high precision in photon detection in complex event topologies with high multiplicity. |
| title | Photon reconstruction using the Hough transform in imaging calorimeters |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2508.20728 |