{
  "abstract": "We present a model for calculating the forward elastic analyzing power $A_\\text{N}^{pA}(t)$ in proton-nucleus scattering, based on the Glauber approximation and incorporating soft-photon exchange corrections. The model is tested against 100 GeV HJET measurements for several nuclei, including Au, Ru, Zr, Al, O, C, and the deuteron. The calculations use Woods-Saxon parameters to describe the nuclear density distributions, as well as the proton-proton and proton-neutron hadronic spin-flip amplitudes, with the latter constrained by a Regge fit to HJET $pp$ data. Using the nominal input parameters, the calculations provide a reasonable description of the measured analyzing powers, although further refinement is needed to achieve a satisfactory fit. Allowing the input parameters to vary in the fits substantially improves the agreement with the data, yielding effective parametrizations of $A_\\text{N}^{pA}(t)$ in terms of three or four parameters, depending on the nucleus. Notably, the nominal values of the imaginary part of the effective proton-nucleus spin-flip parameter $r_5^{pA}$ agree well with the fitted values for all nuclei considered. Subject to the limitations of the present model, this observation concerning $\\operatorname{Im} r_5^{pA}$ is consistent with the proton-proton spin-flip amplitudes measured at HJET and supports the interpretation of a non-zero Pomeron spin-flip coupling. The results presented in this paper also motivate further investigation of the energy dependence of the proton-nucleon spin-flip amplitude using HJET measurements over a broad range of beam energies, with potential applications to proton-carbon and \\(^3\\)He polarimetry at the Electron-Ion Collider.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.04024",
  "author_total": 1,
  "authors": [
    {
      "name": "Andrei Poblaguev"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/33g3rv0cj2b8q.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.04024",
  "fulltext_url": null,
  "id": "33g3rv0cj2b8q",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.04024",
  "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"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.04024",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/33g3rv0cj2b8q.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:21:25Z",
      "native_id": "2611.04024",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.04024"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Modeling a Framework for Comprehensive Analysis of $\\boldsymbol{p^\\uparrow\\!{A}}$ Transverse Analyzing Power Measurements at the RHIC HJET",
  "title_text": "Modeling a Framework for Comprehensive Analysis of p^↑ A Transverse Analyzing Power Measurements at the RHIC HJET",
  "type": "preprint",
  "updated_at": "2026-11-06T18:21:01Z",
  "url": "https://research.draconitic.com/paper/33g3rv0cj2b8q",
  "venue": "arXiv",
  "versions": []
}