{
  "abstract": "We present a study of Lorentz invariance violation (LIV) in neutrino oscillations, with primary emphasis on the interplay between CPT-violating and CPT-conserving Standard Model Extension (SME) coefficients. We find that $a_{ee}$ and $a_{ττ}$ dominate among the diagonal LIV coefficients, whereas $a_{eμ}$ and $a_{eτ}$ provide the most significant off-diagonal contributions. In contrast, the corresponding $c_{αβ}$ coefficients have comparatively sub-leading effects. Taking DUNE as a representative long-baseline experiment, we show that the sensitivity to CP violation is modified by LIV in a parameter-specific manner. We find correlations between off-diagonal LIV parameters, and non-trivial dependence on the new phases. In absence of LIV, DUNE is expected to establish CP violation at $5σ$ for a limited fraction of $δ_{CP}$ values. We find that the presence of $a_{ee}$, $a_{ττ}$, $a_{eμ}$ and $a_{eτ}$ weakens the CP discovery potential, reducing the achievable significance to below $3σ$ over a substantial fraction of $δ_{\\rm CP}$. The independent impact of $c_{αβ}$ terms also results in suppression, but in combination with $a_{αβ}$, they introduce degeneracies, complicating the extraction of $δ_{CP}$. This generally results in a deterioration of CP violation sensitivities below $5σ$. These findings emphasize the importance of incorporating LIV effects in precision oscillation studies at upcoming long-baseline experiments.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: JHEP10 (2026) 110",
  "arxiv": "2607.06513",
  "author_total": 4,
  "authors": [
    {
      "name": "Priyankush Deka"
    },
    {
      "name": "Arnab Sarker"
    },
    {
      "name": "Moon Moon Devi"
    },
    {
      "name": "Sushant K. Raut"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7e461v2yxv58t.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.06513",
  "fulltext_url": null,
  "id": "7e461v2yxv58t",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.06513",
  "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"
    ],
    [
      "arxiv",
      "hep-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2607.06513",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7e461v2yxv58t.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:06Z",
      "native_id": "2607.06513",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.06513"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Interplay of CPT-Violating and CPT-Conserving Lorentz Invariance Violation at DUNE",
  "title_text": "Interplay of CPT-Violating and CPT-Conserving Lorentz Invariance Violation at DUNE",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:06Z",
  "url": "https://research.draconitic.com/paper/7e461v2yxv58t",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1007/jhep10(2026)110",
      "pid": "18zqq2ezw8edq",
      "relation": "published-as",
      "title": "Interplay of CPT-violating and CPT-conserving Lorentz invariance violation at DUNE",
      "venue": "Journal of High Energy Physics"
    }
  ]
}