{
  "abstract": "We extend the relativistic spherical complex optical-potential method with group additivity developed in our recent work [S. Arya and B. Antony, \\textit{RSC Adv.} \\textbf{16}, 13548--13558 (2026)] to molecules with permanent dipole moments. The short-range electronic collision is described by a central Dirac partial-wave calculation, while the missing anisotropic long-range dipole interaction is restored through a rotationally resolved first-Born contribution. The rotational thresholds, state-to-state transition-dipole strengths, and thermal populations are obtained from the HITRAN2024 spectroscopic database and thermally reweighted at the adopted rotational temperature. Both excitation and superelastic de-excitation channels are included. Electron scattering from benchmark polar hydrides ($\\rm H_2O$, $\\rm H_2S$, $\\rm NH_3$, and $\\rm PH_3$) is investigated over the incident-energy range 0.1--10,000 eV. We report vibrationally elastic, differential, integral, and momentum-transfer cross sections, together with a total cross section that also contains electronically inelastic loss from the quasifree absorption potential. The calculations reproduce the broad experimental and recommended trends over a wide energy range. The largest deviations are confined mainly to the low-energy and resonance-sensitive regions. Overall, the agreement improves substantially from the tens-of-eV region upward. The method therefore retains the low computational cost and wide energy coverage of the optical-potential approach while adding the long-range rotational physics needed for polar molecules.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.16650",
  "author_total": 2,
  "authors": [
    {
      "name": "Sudhanshu Arya"
    },
    {
      "name": "Bobby Antony"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ewhf2e51mqb2c.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.16650",
  "fulltext_url": null,
  "id": "ewhf2e51mqb2c",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.16650",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.atm-clus"
    ],
    [
      "openalex",
      "3107|Atomic and Molecular Physics"
    ]
  ],
  "openalex": "W7213405980",
  "pdf_url": "https://arxiv.org/pdf/2609.16650",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ewhf2e51mqb2c.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:41Z",
      "native_id": "2609.16650",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.16650"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.atm-clus",
      "subfield": "amo"
    }
  ],
  "title": "Electron scattering from polar hydrides using relativistic optical potential method",
  "title_text": "Electron scattering from polar hydrides using relativistic optical potential method",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:41Z",
  "url": "https://research.draconitic.com/paper/ewhf2e51mqb2c",
  "venue": "arXiv",
  "versions": []
}