Measurement of the mass and lifetime of the [Omega]-b baryon
A proton-proton collision data sample, corresponding to an integrated luminosity of 3 fb−1 collected by LHCb at √s=7 and 8 TeV, is used to reconstruct 63±9 Ω−b→Ω0cπ−, Ω0c→pK−K−π+ decays. Using the Ξ−b→Ξ0cπ−, Ξ0c→pK−K−π+ decay mode for calibration, the lifetime ratio and the absolute lifetime of the...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
19 May 2016
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| In: |
Physical review
Year: 2016, Volume: 93, Issue: 9 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.93.092007 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.93.092007 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.93.092007 
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| Author Notes: | R. Aaij et al.* (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a Measurement of the mass and lifetime of the [Omega]-b baryon |c R. Aaij et al.* (LHCb Collaboration) |
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| 246 | 3 | 3 | |a Measurement of the mass and lifetime of the [Omega] - b baryon |
| 264 | 1 | |c 19 May 2016 | |
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| 500 | |a *LHCb Collaboration: R. Aaij, P. D'Argent, S. Bachmann, S. Braun, M. Britsch, A. Comerma-Montells, M. De Cian, S. Esen, D. Gerick, E. Gersabeck, L. Grillo, X. Han, S. Hansmann-Menzemer, A. Jaeger, M. Kecke, M. Kolpin, K. Kreplin, B. Leverington, J. Marks, M. Meissner, D.S. Mitzel, S. Neubert, M. Neuner, T. Nikodem, A. Piucci, M. Stahl, U. Uwer, M. Vesterinen, A. Zhelezov [und 702 weitere Personen] | ||
| 500 | |a Im Titel ist [Omega] als griechischer Buchstabe dargestellt | ||
| 500 | |a Im Titel ist das Zeichen - hochgestellt | ||
| 500 | |a Im Titel ist der Buchstabe b tiefgestellt | ||
| 500 | |a Gesehen am 14.07.2020 | ||
| 520 | |a A proton-proton collision data sample, corresponding to an integrated luminosity of 3 fb−1 collected by LHCb at √s=7 and 8 TeV, is used to reconstruct 63±9 Ω−b→Ω0cπ−, Ω0c→pK−K−π+ decays. Using the Ξ−b→Ξ0cπ−, Ξ0c→pK−K−π+ decay mode for calibration, the lifetime ratio and the absolute lifetime of the Ω−b baryon are measured to be τΩ−b/τΞ−b=1.11±0.16±0.03, τΩ−b=1.78±0.26±0.05±0.06 ps, where the uncertainties are statistical, systematic and from the calibration mode (for τΩ−b only). A measurement is also made of the mass difference, mΩ−b−mΞ−b, and the corresponding Ω−b mass, which yields mΩ−b−mΞ−b=247.4±3.2±0.5 MeV/c2, mΩ−b=6045.1±3.2±0.5±0.6 MeV/c2. These results are consistent with previous measurements. | ||
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