{
  "abstract": "We study the charge balance function $B(Δη,Δϕ)$ and the charge-dependent transverse-momentum balance function $P_{2}^{\\rm CD}(Δη,Δϕ)$ in proton--proton ($pp$) collisions at $\\sqrt{s}=13.6$~TeV using \\texttt{PYTHIA~8.315} with the Monash tune. Flattenicity is employed as an event-shape observable to probe how these correlations depend on the topology of particle production. The results are examined across different charged-particle multiplicity intervals to disentangle the effects of overall event activity and event topology on $B$ and $P_{2}^{\\rm CD}$. Both observables exhibit pronounced near-side correlations around $(Δη,Δϕ)\\approx(0,0)$. The near-side peaks become stronger with increasing charged-particle multiplicity, and the RMS widths of both observables decrease systematically, indicating that the correlations become more localized in relative pseudorapidity and azimuth. A clear dependence on flattenicity is also observed: jet-like events (low flattenicity) generally exhibit stronger and narrower near-side correlations than isotropic events (high flattenicity). This event-shape dependence is more pronounced for $P_{2}^{\\rm CD}$ than for $B$, indicating that $P_{2}^{\\rm CD}$ is more sensitive to event topology, whereas $B$ primarily probes charge-dependent particle-pair correlations. These results demonstrate the complementary nature of the two observables and the potential of flattenicity-based event selection for studying particle-production mechanisms in high-multiplicity $pp$ collisions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.26058",
  "author_total": 3,
  "authors": [
    {
      "name": "Srabani Dutta Roy"
    },
    {
      "name": "Rohit Agarwala"
    },
    {
      "name": "Kalyan Dey"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/88qqhv0jdf77b.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.26058",
  "fulltext_url": null,
  "id": "88qqhv0jdf77b",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.26058",
  "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",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|High-Energy Particle Collisions Research"
    ]
  ],
  "openalex": "W7223057648",
  "pdf_url": "https://arxiv.org/pdf/2610.26058",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/88qqhv0jdf77b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.26058",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.26058"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Flattenicity dependence of charge and transverse-momentum balance functions in $pp$ collisions at $\\sqrt{s}=13.6$ TeV with PYTHIA8",
  "title_text": "Flattenicity dependence of charge and transverse-momentum balance functions in pp collisions at √s=13.6 TeV with PYTHIA8",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/88qqhv0jdf77b",
  "venue": "arXiv",
  "versions": []
}