End-to-end reconstruction of ultra-high energy particle observables from radio detection of extensive air showers
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912498086576128 |
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| author | Zhang, Kewen Kaikai, Duan Koirala, Ramesh Tueros, Matías Zhang, Chao Zhang, Yi |
| author_facet | Zhang, Kewen Kaikai, Duan Koirala, Ramesh Tueros, Matías Zhang, Chao Zhang, Yi |
| contents | The radio detection of very inclined air showers offers a promising avenue for studying ultra-high-energy cosmic rays (UHECRs) and neutrinos. Accurate reconstruction methods are essential for investigating the properties of primary particles. Recently, we developed an analytical least-squares method to reconstruct the electric field using three polarization components. The reconstruction yields no bias, with a 68\% confidence interval of [-0.02, 0.02], and a standard deviation of 0.04. Using this reconstructed electric field, we perform a realistic reconstruction of the the properties of primary particles. We employ a spherical wave model combined with an angular distribution function (ADF) for arrival direction reconstruction, achieving an angular resolution of 0.04$^\circ$. This paper also presents an energy reconstruction in which we account for the effects of geosynchrotron radiation in inclined air showers, we implement an air density correction in the energy reconstruction, resulting in a 10\% resolution in energy estimation. These findings demonstrate the reliability and effectiveness of our reconstruction methodology, paving the way for future detection experiments using sparse antenna arrays. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2507_17266 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | End-to-end reconstruction of ultra-high energy particle observables from radio detection of extensive air showers Zhang, Kewen Kaikai, Duan Koirala, Ramesh Tueros, Matías Zhang, Chao Zhang, Yi Instrumentation and Methods for Astrophysics The radio detection of very inclined air showers offers a promising avenue for studying ultra-high-energy cosmic rays (UHECRs) and neutrinos. Accurate reconstruction methods are essential for investigating the properties of primary particles. Recently, we developed an analytical least-squares method to reconstruct the electric field using three polarization components. The reconstruction yields no bias, with a 68\% confidence interval of [-0.02, 0.02], and a standard deviation of 0.04. Using this reconstructed electric field, we perform a realistic reconstruction of the the properties of primary particles. We employ a spherical wave model combined with an angular distribution function (ADF) for arrival direction reconstruction, achieving an angular resolution of 0.04$^\circ$. This paper also presents an energy reconstruction in which we account for the effects of geosynchrotron radiation in inclined air showers, we implement an air density correction in the energy reconstruction, resulting in a 10\% resolution in energy estimation. These findings demonstrate the reliability and effectiveness of our reconstruction methodology, paving the way for future detection experiments using sparse antenna arrays. |
| title | End-to-end reconstruction of ultra-high energy particle observables from radio detection of extensive air showers |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2507.17266 |