Understanding neutrino pion production with the GiBUU model
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866914157504233472 |
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| author | Yan, Qiyu Wen, Kaile Gallmeister, Kai Lu, Xianguo Mosel, Ulrich Zheng, Yangheng |
| author_facet | Yan, Qiyu Wen, Kaile Gallmeister, Kai Lu, Xianguo Mosel, Ulrich Zheng, Yangheng |
| contents | Pion production is a major source of systematic uncertainty in neutrino oscillation measurements. We report a systematic investigation of neutrino-induced pion production using MINERvA and MicroBooNE data within the GiBUU theoretical framework. The analysis begins by establishing baseline model parameters using inclusive and pionless data from MINERvA, MicroBooNE, and T2K experiments. We then examine the role of in-medium effects, including resonance broadening and nucleon-nucleon final-state interactions. While agreement with individual datasets can be achieved through specific model configurations, we demonstrate the difficulty of a unified description across all experiments: MINERvA measurements prefer minimum in-medium modifications, whereas MicroBooNE data require the maximum in-medium enhancement, revealing the complexity and richness of the underlying nuclear dynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_20539 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Understanding neutrino pion production with the GiBUU model Yan, Qiyu Wen, Kaile Gallmeister, Kai Lu, Xianguo Mosel, Ulrich Zheng, Yangheng High Energy Physics - Experiment Nuclear Experiment Nuclear Theory Pion production is a major source of systematic uncertainty in neutrino oscillation measurements. We report a systematic investigation of neutrino-induced pion production using MINERvA and MicroBooNE data within the GiBUU theoretical framework. The analysis begins by establishing baseline model parameters using inclusive and pionless data from MINERvA, MicroBooNE, and T2K experiments. We then examine the role of in-medium effects, including resonance broadening and nucleon-nucleon final-state interactions. While agreement with individual datasets can be achieved through specific model configurations, we demonstrate the difficulty of a unified description across all experiments: MINERvA measurements prefer minimum in-medium modifications, whereas MicroBooNE data require the maximum in-medium enhancement, revealing the complexity and richness of the underlying nuclear dynamics. |
| title | Understanding neutrino pion production with the GiBUU model |
| topic | High Energy Physics - Experiment Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2507.20539 |