{
  "abstract": "Temperature relaxation between plasma species is usually described by Landau--Spitzer (LS) theory, which assumes Maxwellian distributions throughout. We show analytically that, for two Maxwellian species in homogeneous isotropic plasmas, the interspecies collisions driving relaxation generate a universal three-lobe initial distortion and that these distortions initially reduce energy exchange over a broad parameter range. Full Fokker--Planck simulations reveal substantial relaxation delays when interspecies deformation competes with self-thermalization. For post-shock deuterium--tritium plasmas relevant to inertial confinement fusion, with $T_{\\mathrm{T}}/T_{\\mathrm{D}}=1.5$, the relaxation time exceeds the LS prediction by 47%. The accompanying distortions lower the apparent DD/DT temperature ratio and produce positive DD and negative DT Gamow-shift residuals relative to Maxwellian predictions. These results also motivate examining non-Maxwellianity in fuel heating by fusion $α$ particles.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.35009",
  "author_total": 3,
  "authors": [
    {
      "name": "Yao Guo"
    },
    {
      "name": "Dong Wu"
    },
    {
      "name": "Jie Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/awqedfgh571ay.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.35009",
  "fulltext_url": null,
  "id": "awqedfgh571ay",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.35009",
  "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",
      "physics.plasm-ph"
    ],
    [
      "openalex",
      "3106|Laser-Plasma Interactions and Diagnostics"
    ]
  ],
  "openalex": "W7223991081",
  "pdf_url": "https://arxiv.org/pdf/2610.35009",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/awqedfgh571ay.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.35009",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.35009"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.plasm-ph",
      "subfield": "plasma"
    }
  ],
  "title": "Non-Maxwellianity in Temperature Relaxation between Plasma Species",
  "title_text": "Non-Maxwellianity in Temperature Relaxation between Plasma Species",
  "type": "preprint",
  "updated_at": "2026-11-06T18:21:01Z",
  "url": "https://research.draconitic.com/paper/awqedfgh571ay",
  "venue": "arXiv",
  "versions": []
}