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| Titel: | First observation of a doubly charged tetraquark and its neutral partner |
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| Mitwirkende: | Aaij, Roel [VerfasserIn]  |
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| | Archilli, Flavio [VerfasserIn] |
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| | Bachmann, Sebastian [VerfasserIn] |
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| | Borsato, Martino [VerfasserIn] |
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| | Caspary, Rowina [VerfasserIn] |
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| | Frau, Giulia [VerfasserIn] |
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| | Günther, Paul André [VerfasserIn] |
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| | Han, Xiaoxue [VerfasserIn] |
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| | Hansmann-Menzemer, Stephanie [VerfasserIn] |
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| | Hu, Jiangqiao [VerfasserIn] |
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| | Leverington, Blake [VerfasserIn] |
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| | Li, Peilian [VerfasserIn] |
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| | Marks, Jörg [VerfasserIn] |
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| | Unverzagt, Daniel Joachim [VerfasserIn] |
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| | Uwer, Ulrich [VerfasserIn] |
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| | Witola, Lukas [VerfasserIn] |
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| | Zhelezov, Alexey [VerfasserIn] |
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| Körperschaft: | LHCb Collaboration [VerfasserIn] |
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| Verf.angabe: | R. Aaij et al. (LHCb Collaboration)* |
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| E-Jahr: | 2023 |
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| Jahr: | 27 July 2023 |
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| Umfang: | 12 S. |
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| Illustrationen: | Illustrationen |
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| Fussnoten: | *LHCb Collaboration: R. Aaij, F. Archilli, S. Bachmann, M. Borsato, R. Caspary, G. Frau, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, B. Leverington, P. Li, J. Marks, D.J. Unverzagt, U. Uwer, L. Witola, A. Zhelezov [und 1056 weitere Personen] ; Gesehen am 31.01.2024 |
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| Titel Quelle: | Enthalten in: Physical review letters |
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| Ort Quelle: | College Park, Md. : APS, 1958 |
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| Jahr Quelle: | 2023 |
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| Band/Heft Quelle: | 131(2023), 4, Artikel-ID 041902, Seite 1-12 |
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| ISSN Quelle: | 1079-7114 |
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| Abstract: | A combined amplitude analysis is performed for the decays B0→¯¯¯D0D+sπ− and B+→D−D+sπ+, which are related by isospin symmetry. The analysis is based on data collected by the LHCb detector in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV. The full data sample corresponds to an integrated luminosity of 9 fb−1. Two new resonant states with masses of 2.908±0.011±0.020 GeV and widths of 0.136±0.023±0.013 GeV are observed, which decay to D+sπ+ and D+sπ− respectively. The former state indicates the first observation of a doubly charged open-charm tetraquark state with minimal quark content [c¯su¯d], and the latter state is a neutral tetraquark composed of [c¯s¯ud] quarks. Both states are found to have spin-parity of 0+, and their resonant parameters are consistent with each other, which suggests that they belong to an isospin triplet. |
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| DOI: | doi:10.1103/PhysRevLett.131.041902 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1103/PhysRevLett.131.041902 |
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| | Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.131.041902 |
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| | DOI: https://doi.org/10.1103/PhysRevLett.131.041902 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1879648482 |
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| Verknüpfungen: | → Zeitschrift |
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First observation of a doubly charged tetraquark and its neutral partner / Aaij, Roel [VerfasserIn]; 27 July 2023 (Online-Ressource)
