Novel position reconstruction methods for highly granular electromagnetic calorimeters
We present work on design and reconstruction methods for sampling electromagnetic calorimeters with emphasis on highly granular designs. We use the clustered logarithmically weighted center-of-gravity estimator (lwk-means) for initial benchmarking of position resolution. We find that the θ and φ res...
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EDP Sciences
2024-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_03007.pdf |
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| author | Madison Brendon Wilson Graham |
| author_facet | Madison Brendon Wilson Graham |
| author_sort | Madison Brendon |
| collection | DOAJ |
| description | We present work on design and reconstruction methods for sampling electromagnetic calorimeters with emphasis on highly granular designs. We use the clustered logarithmically weighted center-of-gravity estimator (lwk-means) for initial benchmarking of position resolution. We find that the θ and φ resolution for high energy photons in Si-W designs improves when increasing both sampling frequency and sampling thickness. Augmenting only one is found to have mixed results. We find that lwk-means is unable to effectively use calorimeter transverse cell sizes smaller than 2 mm. New reconstruction methods for highly granular designs are developed. We find that methods that only measure the initial particle shower and disregard the remaining shower can take advantage of cell sizes down to at least 10 µm, significantly outperforming the benchmark method. Of these, the best method and design is the initial particle shower “single hit” method using the calorimeter design with the highest sampling frequency and sampling fraction. |
| format | Article |
| id | doaj-art-6d6d0acda0ba48e0b2967a0497ca5b73 |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-6d6d0acda0ba48e0b2967a0497ca5b732025-01-06T11:33:47ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-013150300710.1051/epjconf/202431503007epjconf_lcws2024_03007Novel position reconstruction methods for highly granular electromagnetic calorimetersMadison Brendon0Wilson Graham1Department of Physics and Astronomy, University of KansasDepartment of Physics and Astronomy, University of KansasWe present work on design and reconstruction methods for sampling electromagnetic calorimeters with emphasis on highly granular designs. We use the clustered logarithmically weighted center-of-gravity estimator (lwk-means) for initial benchmarking of position resolution. We find that the θ and φ resolution for high energy photons in Si-W designs improves when increasing both sampling frequency and sampling thickness. Augmenting only one is found to have mixed results. We find that lwk-means is unable to effectively use calorimeter transverse cell sizes smaller than 2 mm. New reconstruction methods for highly granular designs are developed. We find that methods that only measure the initial particle shower and disregard the remaining shower can take advantage of cell sizes down to at least 10 µm, significantly outperforming the benchmark method. Of these, the best method and design is the initial particle shower “single hit” method using the calorimeter design with the highest sampling frequency and sampling fraction.https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_03007.pdf |
| spellingShingle | Madison Brendon Wilson Graham Novel position reconstruction methods for highly granular electromagnetic calorimeters EPJ Web of Conferences |
| title | Novel position reconstruction methods for highly granular electromagnetic calorimeters |
| title_full | Novel position reconstruction methods for highly granular electromagnetic calorimeters |
| title_fullStr | Novel position reconstruction methods for highly granular electromagnetic calorimeters |
| title_full_unstemmed | Novel position reconstruction methods for highly granular electromagnetic calorimeters |
| title_short | Novel position reconstruction methods for highly granular electromagnetic calorimeters |
| title_sort | novel position reconstruction methods for highly granular electromagnetic calorimeters |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_03007.pdf |
| work_keys_str_mv | AT madisonbrendon novelpositionreconstructionmethodsforhighlygranularelectromagneticcalorimeters AT wilsongraham novelpositionreconstructionmethodsforhighlygranularelectromagneticcalorimeters |