Observation of the open-charm tetraquark candidate T*cs0 (2870)0 in the B-→D-D0K0S decay
An amplitude analysis of 𝐵−→𝐷−𝐷0𝐾0𝑆 decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A resonant structure of spin-parity 0+ is observed in the 𝐷0𝐾0𝑆 invaria...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
11 March, 2025
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| In: |
Physical review letters
Year: 2025, Jahrgang: 134, Heft: 10, Pages: 1-13 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.134.101901 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.134.101901 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.134.101901 |
| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration*) |
MARC
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| 110 | 2 | |a LHCb Collaboration |e VerfasserIn |0 (DE-588)1166245764 |0 (DE-627)1030265593 |0 (DE-576)510686508 |4 aut | |
| 245 | 1 | 0 | |a Observation of the open-charm tetraquark candidate T*cs0 (2870)0 in the B-→D-D0K0S decay |c R. Aaij et al. (LHCb Collaboration*) |
| 246 | 3 | 3 | |a Observation of the open-charm tetraquark candidate T * cs 0 (2870) 0 in the B - → D - D 0 K 0 S decay |
| 264 | 1 | |c 11 March, 2025 | |
| 300 | |b Illustrationen | ||
| 300 | |a 13 | ||
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| 500 | |a Veröffentlicht: 11. März 2025 | ||
| 500 | |a Im Titel ist das Asterixzeichen, Zahl 0 sowie das Minuszeichen hochgestellt | ||
| 500 | |a Im Titel ist der Ausdruck "cs=" sowie der Buchstabe S tiefgestellt | ||
| 500 | |a *LHCb Collaboration: R. Aaij, S. Bachmann, L. Carus, R. Caspary, S. Celani, C. Cocha Toapaxi, M. De Cian, L. Dittmann, S. Esen, F.C. Glaser, P.A. Günther, X. Han, S. Hansmann-Menzemer, P. Herrero Gascon, C. Langenbruch, B. Leverington, J. Marks, M.P. Morgenthaler, S.R. Roy, M. Ruiz Diaz, G. Tuci, L.H. Uecker, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, Y. Zhao, A. Zhelezov [und 1124 weitere Personen] | ||
| 500 | |a Gesehen am 22.01.2026 | ||
| 520 | |a An amplitude analysis of −→−00 decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A resonant structure of spin-parity 0+ is observed in the 00 invariant-mass spectrum with a significance of 5.3. The mass and width of the state, modeled with a Breit-Wigner line shape, are determined to be 2883±11±8 MeV/2 and 87+22−47 ±17 MeV, respectively, where the first uncertainties are statistical and the second systematic. These properties and the quark content are consistent with those of the open-charm tetraquark candidate *0(2870)0 observed previously in the +− final state of the −→−+− decay. This result confirms the existence of the *0(2870)0 state in a new decay mode. The *1(2900)0 state, reported in the −→−+− decay, is also searched for in the 00 invariant-mass spectrum of the − →−00 decay, without finding evidence for it. | ||
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