{
  "abstract": "A measurement of the correlation between the splitting angle $θ_{\\rm g}$ and the momentum-sharing fraction $z_{\\rm g}$ of the first hard splitting in a parton shower in pp collisions and 0$-$10% central Pb$-$Pb collisions at $\\sqrt{s_{\\rm NN}}$ = 5 TeV with the ALICE detector is reported. Charged-particle jets are reconstructed using the anti-$k_{\\rm T}$ algorithm with a jet resolution parameter $R$ = 0.2, in the transverse-momentum range $60 \\leq p_{\\rm T,ch\\;jet} < 80$ GeV/$c$. The Soft Drop grooming algorithm is used to identify the first splitting in the parton shower. Jets observed in Pb$-$Pb collisions are narrower than in pp collisions. This effect is more pronounced for balanced than for unbalanced jets. No significant modification of the momentum-sharing fraction is observed for jets with small opening angles. In contrast, there is a hint that jets with a large opening angle may be less balanced in transverse momentum in Pb$-$Pb collisions compared to pp collisions. The correlations between $θ_{\\rm g}$ and $z_{\\rm g}$ are well described in pp collisions by PYTHIA 8 and POWHEG while HERWIG shows too few jets with large opening angle. In Pb$-$Pb collisions the measurement is compared to a variety of models. The measurement is insensitive to the different implementations of medium response. Inclusion of elastic scatterings, as implemented in the HYBRID model is preferred to describe the unbalanced jets with large $θ_{\\rm g}$ in Pb$-$Pb collisions. The balanced jets, however, are less sensitive to elastic scatterings.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.39515",
  "author_total": 1036,
  "authors": [
    {
      "name": "Dana Ali Hassan Abdallah"
    },
    {
      "name": "Ibrahim Jaser Abualrob"
    },
    {
      "name": "Shreyasi Acharya"
    },
    {
      "name": "Kshitij Agarwal"
    },
    {
      "name": "Gianluca Aglieri Rinella"
    },
    {
      "name": "Luca Aglietta"
    },
    {
      "name": "Neelima Agrawal"
    },
    {
      "name": "Zubayer Ahammed"
    },
    {
      "name": "Shakeel Ahmad"
    },
    {
      "name": "Zulkaida Akbar"
    },
    {
      "name": "Valentina Akishina"
    },
    {
      "name": "Mohammad Al-Turany"
    },
    {
      "name": "Bruno Alessandro"
    },
    {
      "name": "Abdul Rahman Alfarasyi"
    },
    {
      "name": "Jose Ruben Alfaro Molina"
    },
    {
      "name": "Bushra Ali"
    },
    {
      "name": "Andrea Alici"
    },
    {
      "name": "Johan Alme"
    },
    {
      "name": "Giacomo Alocco"
    },
    {
      "name": "Torsten Alt"
    },
    {
      "name": "Igor Altsybeev"
    },
    {
      "name": "Cristian Andrei"
    },
    {
      "name": "Nicodemos Andreou"
    },
    {
      "name": "Anton Andronic"
    },
    {
      "name": "Massimo Angeletti"
    },
    {
      "name": "Venelin Anguelov"
    },
    {
      "name": "Federico Antinori"
    },
    {
      "name": "Pietro Antonioli"
    },
    {
      "name": "Nicole Apadula"
    },
    {
      "name": "Harald Appelshaeuser"
    },
    {
      "name": "Silvia Arcelli"
    },
    {
      "name": "Roberta Arnaldi"
    },
    {
      "name": "Ionut Cristian Arsene"
    },
    {
      "name": "Mesut Arslandok"
    },
    {
      "name": "Muhammad Uzair Aslam"
    },
    {
      "name": "Andre Augustinus"
    },
    {
      "name": "Ralf Peter Averbeck"
    },
    {
      "name": "Mohd Danish Azmi"
    },
    {
      "name": "Byungyun Kong"
    },
    {
      "name": "Hitoshi Baba"
    },
    {
      "name": "Akash Raj John Babu"
    },
    {
      "name": "Angela Badala"
    },
    {
      "name": "Joonsuk Bae"
    },
    {
      "name": "Yunseul Bae"
    },
    {
      "name": "Yongwook Baek"
    },
    {
      "name": "Xiaozhi Bai"
    },
    {
      "name": "Raphaelle Marie Bailhache"
    },
    {
      "name": "Yoshini Bailung"
    },
    {
      "name": "Renu Bala"
    },
    {
      "name": "Alberto Baldisseri"
    },
    {
      "name": "Bartosz Balis"
    },
    {
      "name": "Shubham Bangalia"
    },
    {
      "name": "Koushik Barai"
    },
    {
      "name": "Veronika Barbasova"
    },
    {
      "name": "Francesco Barile"
    },
    {
      "name": "Luca Barioglio"
    },
    {
      "name": "Maria Barlou"
    },
    {
      "name": "Banajit Barman"
    },
    {
      "name": "Gergely Gabor Barnafoldi"
    },
    {
      "name": "Lee Stuart Barnby"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cmvp4bar8887f.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.39515",
  "fulltext_url": null,
  "id": "cmvp4bar8887f",
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  "landing_url": "https://hal.science/hal-05781935v1",
  "language": "en",
  "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",
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    [
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      "hep-ex"
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      "openalex",
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  "openalex": "W7215117090",
  "pdf_url": "https://arxiv.org/pdf/2609.39515",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cmvp4bar8887f.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:49Z",
      "native_id": "hal-05781935",
      "source": "hal",
      "url": "https://hal.science/hal-05781935v1"
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    {
      "first_seen": "2026-10-30T12:25:49Z",
      "native_id": "2609.39515",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.39515"
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  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "Probing jet quenching via the correlation of groomed jet substructure observables in Pb$-$Pb and pp collisions",
  "title_text": "Probing jet quenching via the correlation of groomed jet substructure observables in Pb−Pb and pp collisions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:49Z",
  "url": "https://research.draconitic.com/paper/cmvp4bar8887f",
  "venue": "HAL",
  "versions": []
}