{
  "abstract": "We present a deep-learning surrogate for the Earth matter effect on solar neutrinos. The model uses a residual convolutional network conditioned on the solar neutrino oscillation parameters and is trained on numerical solutions computed over a grid of parameter values. It predicts the Earth-induced transition probabilities across neutrino energy and zenith angle, providing a fast approximation to the direct numerical calculation. For the reference electron-neutrino survival probability, the surrogate achieves a pointwise relative accuracy of approximately $2\\%$ and a speed-up of about a factor of 60 in a laptop-CPU test. Since the network learns only the Earth-crossing propagation, it can be applied without retraining to new-physics scenarios that leave this propagation unchanged. The surrogate can also be retrained using alternative numerical implementations or extended parameter sets, providing a flexible and computationally efficient approach for solar-neutrino analyses. The code and simulation data are publicly available at \\href{https://github.com/AI-Driven-HEP/NuMatterSurrogate}{\\faGithub}.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.25229",
  "author_total": 1,
  "authors": [
    {
      "name": "Saeed Ansarifard"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/01ba1dcms3ggx.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.25229",
  "fulltext_url": null,
  "id": "01ba1dcms3ggx",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.25229",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "arxiv",
      "physics.comp-ph"
    ],
    [
      "openalex",
      "3106|Neutrino Physics Research"
    ]
  ],
  "openalex": "W7214068392",
  "pdf_url": "https://arxiv.org/pdf/2609.25229",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/01ba1dcms3ggx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:39Z",
      "native_id": "2609.25229",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.25229"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.comp-ph",
      "subfield": "computational"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Fast Surrogate for the Earth Matter Effect on Solar Neutrinos",
  "title_text": "Fast Surrogate for the Earth Matter Effect on Solar Neutrinos",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:39Z",
  "url": "https://research.draconitic.com/paper/01ba1dcms3ggx",
  "venue": "arXiv",
  "versions": []
}