{
  "abstract": "A bstract : At finite temperature, the decoupling of heavy Matsubara modes allows a four-dimensional quantum field theory to be matched onto a purely spatial, three-dimensional effective field theory (EFT). This dimensional reduction is a crucial prerequisite for the precise computation of thermal observables, most prominently those related to cosmological phase transitions. In this work, we present Matchotter — a dedicated finite-temperature module natively integrated into the Matchete package [1] — which automates this matching process up to one-loop order for generic Lagrangians. By adapting modern functional matching techniques to the finite-temperature formalism, Matchotter efficiently extracts the low-energy EFT directly from the thermal path integral. Furthermore, the module fully automates supersoft matching, where the temporal gauge bosons, which acquire a Debye mass during the dimensional reduction process, are integrated out. We outline the underlying architecture of the program and demonstrate its capabilities across a range of models, including the Standard Model Effective Field Theory (SMEFT).",
  "abstract_shown": true,
  "affiliations": [
    "Universidad de Granada"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "J. Fuentes-Martín",
      "orcid": "0000-0002-2246-7504"
    },
    {
      "affs": [
        0
      ],
      "name": "J. López Miras",
      "orcid": "0000-0002-7481-3827"
    },
    {
      "affs": [
        0
      ],
      "name": "A. Moreno-Sánchez",
      "orcid": "0009-0005-7791-2344"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c17s38fmw68ye.bib",
  "cited_by": 0,
  "doi": "10.1007/jhep10(2026)126",
  "fulltext_url": null,
  "id": "c17s38fmw68ye",
  "issns": [
    "1029-8479"
  ],
  "landing_url": "https://link.springer.com/10.1007/JHEP10(2026)126",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7221642012",
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/JHEP10(2026)126.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/c17s38fmw68ye.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:01Z",
      "native_id": "10.1007/jhep10(2026)126",
      "source": "crossref",
      "url": "https://link.springer.com/10.1007/JHEP10(2026)126"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Particle physics theoretical and experimental studies",
      "subfield": "high-energy"
    }
  ],
  "title": "Matchotter: an automated tool for matching effective theories at finite temperature",
  "title_text": "Matchotter: an automated tool for matching effective theories at finite temperature",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:01Z",
  "url": "https://research.draconitic.com/paper/c17s38fmw68ye",
  "venue": "Journal of High Energy Physics",
  "versions": []
}