{
  "abstract": "As the essential building blocks of visible matter, hadrons have traditionally been classified by the quark model as mesons composed of quark-antiquark pairs and baryons built from three valence quarks. Yet, this classical picture does not account for the intricate chiral dynamics of the strong force and the emergence of exotic multi-quark hadrons. While experimental evidence for such unconventional dynamics has surfaced in the charm sector, the open-beauty system remains the long-sought frontier for testing the universality of these mechanisms. Here the observation of a new resonance in the beauty-strange sector with a global significance exceeding seven standard deviations is reported using proton-proton collision data recorded by the Large Hadron Collider beauty (LHCb) experiment at the European Organization for Nuclear Research (CERN). It exhibits a narrow natural width and a substantial mass deficit compared to the conventional quark model predictions. This result marks the first observation of a nonconventional single-beauty hadron, providing crucial insights into the chiral dynamics of the strong interaction and heavy-quark spin symmetry in the exotic domain.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.25178",
  "author_total": 1179,
  "authors": [
    {
      "name": "Roel Aaij"
    },
    {
      "name": "Mohammed Abdelfatah"
    },
    {
      "name": "Ahmed Sameh Wagih Abdelmotteleb"
    },
    {
      "name": "Carlos Abellan Beteta"
    },
    {
      "name": "Fernando Jesus Abudinén"
    },
    {
      "name": "Thomas Ackernley"
    },
    {
      "name": "Ayomide Matthew Adefisoye"
    },
    {
      "name": "Bernardo Adeva"
    },
    {
      "name": "Marco Adinolfi"
    },
    {
      "name": "Patrik Harri Adlarson"
    },
    {
      "name": "Christina Agapopoulou"
    },
    {
      "name": "Christine Angela Aidala"
    },
    {
      "name": "Simon Akar"
    },
    {
      "name": "Kazuyoshi Akiba"
    },
    {
      "name": "Hussain Hassan A Al Saleh"
    },
    {
      "name": "Pietro Albicocco"
    },
    {
      "name": "Johannes Albrecht"
    },
    {
      "name": "Ramunas Aleksiejunas"
    },
    {
      "name": "Federico Alessio"
    },
    {
      "name": "Paula Alvarez Cartelle"
    },
    {
      "name": "Sandra Amato"
    },
    {
      "name": "Jake Lewis Amey"
    },
    {
      "name": "Yasmine Amhis"
    },
    {
      "name": "Zachariah Benjamin Amos"
    },
    {
      "name": "Liupan An"
    },
    {
      "name": "Lucio Anderlini"
    },
    {
      "name": "Pasquale Andreola"
    },
    {
      "name": "Mirco Andreotti"
    },
    {
      "name": "Sergio Andres Estrada"
    },
    {
      "name": "Alessia Anelli"
    },
    {
      "name": "Dong Ao"
    },
    {
      "name": "Carolina Arata"
    },
    {
      "name": "Flavio Archilli"
    },
    {
      "name": "Zaratsyan Areg"
    },
    {
      "name": "Matteo Argenton"
    },
    {
      "name": "Sergio Arguedas Cuendis"
    },
    {
      "name": "Lisa Arnone"
    },
    {
      "name": "Marina Artuso"
    },
    {
      "name": "Elie Aslanides"
    },
    {
      "name": "Rita Ataíde da Silva"
    },
    {
      "name": "Michele Atzeni"
    },
    {
      "name": "Benjamin Audurier"
    },
    {
      "name": "Juliette Authier"
    },
    {
      "name": "David Bacher"
    },
    {
      "name": "Irene Bachiller Perea"
    },
    {
      "name": "Sebastian Bachmann"
    },
    {
      "name": "Marie Bachmayer"
    },
    {
      "name": "John Back"
    },
    {
      "name": "Maoze Bai"
    },
    {
      "name": "Ziyu Bai"
    },
    {
      "name": "Vladislav Balagura"
    },
    {
      "name": "Anna Balboni"
    },
    {
      "name": "Wander Baldini"
    },
    {
      "name": "Zachary Baldwin"
    },
    {
      "name": "Luca Balzani"
    },
    {
      "name": "Haoran Bao"
    },
    {
      "name": "Juan Baptista de Souza Leite"
    },
    {
      "name": "Carlos Javier Barbero Pretel"
    },
    {
      "name": "Matteo Barbetti"
    },
    {
      "name": "Ivanildo Rui Barbosa"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e0jgc9nh3ee6y.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.25178",
  "fulltext_url": null,
  "id": "e0jgc9nh3ee6y",
  "issns": [],
  "landing_url": "https://hal.science/hal-05780362v1",
  "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",
  "native_subjects": [
    [
      "arxiv",
      "hep-ex"
    ],
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.hexp"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7214102266",
  "pdf_url": "https://arxiv.org/pdf/2609.25178",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/e0jgc9nh3ee6y.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:48Z",
      "native_id": "hal-05780362",
      "source": "hal",
      "url": "https://hal.science/hal-05780362v1"
    },
    {
      "first_seen": "2026-10-30T12:23:39Z",
      "native_id": "2609.25178",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.25178"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Discovery of an unexpectedly light and narrow beauty-strange state",
  "title_text": "Discovery of an unexpectedly light and narrow beauty-strange state",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:39Z",
  "url": "https://research.draconitic.com/paper/e0jgc9nh3ee6y",
  "venue": "HAL",
  "versions": []
}