{
  "abstract": "The GlueX-III experiment at Jefferson Lab, planned to run in 2027-2029, will enhance the laboratory's capability to explore charmonium production near threshold and related aspects of QCD in the non-perturbative regime. A central upgrade for GlueX-III is a large-scale triple-GEM Transition Radiation Detector (TRD) optimized for electron identification and pion suppression in the hadron-rich environment of fixed-target photoproduction. This document describes the motivation for and efforts related to such an upgrade, including the design, construction, and performance of a 720x528mm$^{2}$ triple-GEM-TRD prototype that was tested in the existing GlueX-II experimental acceptance during the 2025 run. Results validate the prototype's integration, timing performance, and electron identification capability. Its projected impact in the GlueX-III setting is discussed, with background reduction in a $J/ψ$ candidate sample demonstrated. The development and use of a modern TRD technology in a high-background environment at Jefferson Lab may inform detector design choices as a future upgrade path for the EIC.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.31585",
  "author_total": 12,
  "authors": [
    {
      "name": "Lauren Kasper"
    },
    {
      "name": "Alexander Austregesilo"
    },
    {
      "name": "Cody Dickover"
    },
    {
      "name": "Sean Dobbs"
    },
    {
      "name": "Sergey Furletov"
    },
    {
      "name": "Yulia Furletova"
    },
    {
      "name": "Ilya Larin"
    },
    {
      "name": "Lubomir Pentchev"
    },
    {
      "name": "Saheli Rakshit"
    },
    {
      "name": "Nizar Septian"
    },
    {
      "name": "Simon Taylor"
    },
    {
      "name": "Julia Velkovska"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5tabtj274sanh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.31585",
  "fulltext_url": null,
  "id": "5tabtj274sanh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.31585",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "nucl-ex"
    ],
    [
      "arxiv",
      "physics.ins-det"
    ],
    [
      "openalex",
      "3106|Particle Detector Development and Performance"
    ]
  ],
  "openalex": "W7214609174",
  "pdf_url": "https://arxiv.org/pdf/2609.31585",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5tabtj274sanh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:26:03Z",
      "native_id": "2609.31585",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.31585"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.ins-det",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "Transition Radiation Detector Upgrade for the GlueX-III Charmonium Program",
  "title_text": "Transition Radiation Detector Upgrade for the GlueX-III Charmonium Program",
  "type": "preprint",
  "updated_at": "2026-10-30T12:26:03Z",
  "url": "https://research.draconitic.com/paper/5tabtj274sanh",
  "venue": "arXiv",
  "versions": []
}