{
  "abstract": "Intrabeam scattering (IBS) can significantly increase the uncorrelated energy spread of high-brightness electron bunches in linear accelerators. For chirped bunches transported through beamlines with dispersion, however, the commonly used simulation codes elegant and RF-Track give substantially different predictions. To investigate this discrepancy, a semi-analytical slice model is developed for bunches with non-Gaussian longitudinal distributions and slice-dependent transverse mismatch. The model predicts slice energy-spread evolution in beamlines with dispersion and provides an independent reference for assessing the simulation results. Benchmarks in an achromatic arc show good agreement with RF-Track for both ideal Gaussian and realistic mismatched bunches in the tested cases. The proposed model provides a practical tool for evaluating IBS in linacs beyond the ideal-Gaussian approximation. The comparison also suggests directions for improving the accuracy and efficiency of PIC-based IBS simulations.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.38268",
  "author_total": 5,
  "authors": [
    {
      "name": "Xiuji Chen"
    },
    {
      "name": "Wencai Cheng"
    },
    {
      "name": "Si Chen"
    },
    {
      "name": "Duan Gu"
    },
    {
      "name": "Haixiao Deng"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5x1e4w5kpds07.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.38268",
  "fulltext_url": null,
  "id": "5x1e4w5kpds07",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.38268",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.acc-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.38268",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5x1e4w5kpds07.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:23Z",
      "native_id": "2610.38268",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.38268"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.acc-ph",
      "subfield": "applied-instrumentation"
    }
  ],
  "title": "Intrabeam scattering of chirped electron bunches with non-Gaussian longitudinal distributions and slice mismatch",
  "title_text": "Intrabeam scattering of chirped electron bunches with non-Gaussian longitudinal distributions and slice mismatch",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:44Z",
  "url": "https://research.draconitic.com/paper/5x1e4w5kpds07",
  "venue": "arXiv",
  "versions": []
}