{
  "abstract": "The first measurement of the elliptic-flow coefficient ($v_{2}$) of $ϕ$, K$^0_{\\rm S}$, and $Λ(\\overlineΛ)$ hadrons performed in OO collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.36$ TeV with the ALICE detector is presented as a function of transverse momentum ($p_{\\rm T}$) in central and semi-central collisions. For the $ϕ$ meson, in particular, this is the first measurement of the elliptic flow in a small collision system. At low $p_{\\rm T}$, a characteristic mass ordering of $v_{2}$ is observed, consistent with collective expansion of the system, in which heavier hadrons are shifted to higher $p_{\\rm T}$ by a common velocity field. At intermediate $p_{\\rm T}$, above 3 GeV/$c$, a baryon$-$meson splitting with a $10σ$ significance emerges, with the $Λ(\\overlineΛ)$ baryon exhibiting larger $v_{2}$ values than mesons, while, despite its mass being close to the mass of the $Λ$, the $ϕ$ follows the K$^{0}_{\\rm S}$. The $ϕ$ meson behavior disfavors a purely mass-driven interpretation of the observed patterns and supports the role of hadronization via quark recombination from a collectively flowing partonic medium. These results provide complementary evidence that key signatures of partonic collectivity observed in Pb$-$Pb collisions persist in light nucleus$-$nucleus systems.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.36237",
  "author_total": 1,
  "authors": [
    {
      "name": "ALICE Collaboration"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6nayzzgwsmabh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.36237",
  "fulltext_url": null,
  "id": "6nayzzgwsmabh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.36237",
  "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-ex"
    ],
    [
      "arxiv",
      "nucl-ex"
    ],
    [
      "openalex",
      "3106|High-Energy Particle Collisions Research"
    ]
  ],
  "openalex": "W7224091178",
  "pdf_url": "https://arxiv.org/pdf/2610.36237",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6nayzzgwsmabh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2610.36237",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.36237"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "Evidence of partonic collectivity in OO collisions through the measurement of $ϕ$, K$^0_{\\rm S}$, and $Λ$ elliptic flow",
  "title_text": "Evidence of partonic collectivity in OO collisions through the measurement of ϕ, K^0_S, and Λ elliptic flow",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/6nayzzgwsmabh",
  "venue": "arXiv",
  "versions": []
}