{
  "abstract": "Quark-lepton complementarity (QLC) provides a phenomenological framework for comparing quark and lepton flavour structures. We reassess a modified QLC correlation-matrix construction using the 2026 Particle Data Group quark-mixing inputs and the NuFIT 6.1 oscillation likelihoods. The historical prediction $\\sin^2θ_{23}=0.4235$ is strongly disfavoured, with $Δχ^2=17.99$ for normal ordering and 20.43 for inverted ordering, whereas later ordering-dependent estimates remain compatible with present preferred regions. Reconstructed ensembles of the complex correlation matrix show that the first row is comparatively stable, while about 99\\% of the squared mean-texture evolution occurs in the lower two rows; roughly 72\\% of the present ensemble remains closer to the tribimaximal than to the bimaximal reference texture. We further formulate the lepton sector in the symmetric Schechter-Valle parametrization. The oscillation phase appears as the invariant combination $δ=ϕ_{13}-ϕ_{12}-ϕ_{23}$, while independent phase directions remain relevant to lepton-number-violating (LNV) amplitudes. We prove that, for unrestricted diagonal quark-lepton mismatch phases, changing from the standard PDG convention to the symmetric parametrization leaves the full ensemble of $|V_{c,ij}|$ invariant: additional left phases are absorbed into the mismatch matrix and right phases only rephase columns. Consequently, the QLC magnitude texture does not constrain the independent Majorana/LNV phases. The historical $S_1$ and $S_2$ limits are also found to lie close to their phase-agnostic kinematic ceilings.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.18812",
  "author_total": 2,
  "authors": [
    {
      "name": "Gazal Sharma"
    },
    {
      "name": "Gaurav Katoch"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2k5dwwq396e6e.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.18812",
  "fulltext_url": null,
  "id": "2k5dwwq396e6e",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.18812",
  "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",
      "3106|Neutrino Physics Research"
    ]
  ],
  "openalex": "W7203917142",
  "pdf_url": "https://arxiv.org/pdf/2608.18812",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2k5dwwq396e6e.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:41Z",
      "native_id": "2608.18812",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.18812"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Precision-Era Reassessment of Modified Quark--Lepton Complementarity: NuFIT 6.1, Phase-Convention Covariance and Lepton-Number Violation",
  "title_text": "Precision-Era Reassessment of Modified Quark--Lepton Complementarity: NuFIT 6.1, Phase-Convention Covariance and Lepton-Number Violation",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:41Z",
  "url": "https://research.draconitic.com/paper/2k5dwwq396e6e",
  "venue": "arXiv",
  "versions": []
}