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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2508.12095 |
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| _version_ | 1866915448195383296 |
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| author | Ostapchenko, Sergey Sigl, Günter |
| author_facet | Ostapchenko, Sergey Sigl, Günter |
| contents | The treatment of charmed hadron production in the framework of the QGSJET-III Monte Carlo generator is developed, including both perturbative and nonperturbative contributions. For the former, a leading order (LO) perturbative formalism is employed. The so-called $K$-factor designed to take effectively into account higher order corrections, which controls the magnitude of the LO perturbative contribution, is fixed based on a comparison with experimental data on $D$ meson production at the Large Hadron Collider. For the nonperturbative intrinsic charm, a phenomenological Regge-based treatment is developed, with the corresponding normalization being chosen based on measurements of the spectra of $Λ_c$ baryons at large values of Feynman $x$. The model is applied for a calculation of the prompt atmospheric muon neutrino flux in the $10-100$ TeV and $1-10$ PeV energy intervals. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_12095 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Charmed hadron production in the QGSJET-III model: relevance to calculations of the prompt atmospheric neutrino background Ostapchenko, Sergey Sigl, Günter High Energy Physics - Phenomenology The treatment of charmed hadron production in the framework of the QGSJET-III Monte Carlo generator is developed, including both perturbative and nonperturbative contributions. For the former, a leading order (LO) perturbative formalism is employed. The so-called $K$-factor designed to take effectively into account higher order corrections, which controls the magnitude of the LO perturbative contribution, is fixed based on a comparison with experimental data on $D$ meson production at the Large Hadron Collider. For the nonperturbative intrinsic charm, a phenomenological Regge-based treatment is developed, with the corresponding normalization being chosen based on measurements of the spectra of $Λ_c$ baryons at large values of Feynman $x$. The model is applied for a calculation of the prompt atmospheric muon neutrino flux in the $10-100$ TeV and $1-10$ PeV energy intervals. |
| title | Charmed hadron production in the QGSJET-III model: relevance to calculations of the prompt atmospheric neutrino background |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2508.12095 |