Observation of excited Ω0c baryons in Ω−b→Ξ+cK−π− decays
The first observation of the Ω−b→Ξ+cK−π− decay is reported using p p collision data at center of mass energies of 7, 8, and 13 TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. Four excited Ω0c baryons are observed in the Ξ+c K− mass projection of the Ω−b→Ξ+c...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
24 November 2021
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| In: |
Physical review
Year: 2021, Volume: 104, Issue: 9, Pages: 1-14 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.104.L091102 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.104.L091102 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.104.L091102 
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| Author Notes: | R. Aaij et al.* (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a Observation of excited Ω0c baryons in Ω−b→Ξ+cK−π− decays |c R. Aaij et al.* (LHCb Collaboration) |
| 246 | 3 | 3 | |a Observation of excited Omega 0 c baryons in Omega − b → Xi + c K − pi − decays |
| 264 | 1 | |c 24 November 2021 | |
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| 500 | |a Gesehen am 24.01.2022 | ||
| 500 | |a LHCb Collaboration: R. Aaij, S. Bachmann, D. Berninghoff, M. Borsato, G. Frau, D. Gerick, J.P. Grabowski, P.A. Günther, S. Hansmann-Menzemer, J. Hu, R. Kopecna, B. Leverington, P. Li, H. Malygina, J. Marks, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, A. Zhelezov [und 950 weitere Personen] | ||
| 500 | |a Im Titel ist die Zahl 0 sowie die Zeichen + und - hochgestellt | ||
| 500 | |a Im Titel sind die Buchstaben b und c tiefgestellt | ||
| 520 | |a The first observation of the Ω−b→Ξ+cK−π− decay is reported using p p collision data at center of mass energies of 7, 8, and 13 TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. Four excited Ω0c baryons are observed in the Ξ+c K− mass projection of the Ω−b→Ξ+cK−π− decays with the significance of each exceeding five standard deviations. They coincide with the states previously observed in prompt pp and e+e− production. Relative production rates, masses, and natural widths of the states are measured, and a test of spin hypotheses is performed. Moreover, the branching ratio of Ω−b→Ξ+cK−π− is measured relative to the Ω−b→Ω0cπ− decay mode and a precise measurement of the Ω−b mass of 6044.3±1.2±1.1+0.19−0.22 MeV is obtained. | ||
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