Measurement of the branching fraction of the decay B0s→K0SK0S
A measurement of the branching fraction of the decay B0s→K0SK0S is performed using proton-proton collision data corresponding to an integrated luminosity of 5 fb−1 collected by the LHCb experiment between 2011 and 2016. The branching fraction is determined to be B(B0s→K0SK0S)=[8.3±1.6(stat)±0.9(syst...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
31 July 2020
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| In: |
Physical review
Year: 2020, Jahrgang: 102, Heft: 1 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.102.012011 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1103/PhysRevD.102.012011 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.102.012011 
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| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration) |
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| 245 | 1 | 0 | |a Measurement of the branching fraction of the decay B0s→K0SK0S |c R. Aaij et al. (LHCb Collaboration) |
| 246 | 3 | 3 | |a Measurement of the branching fraction of the decay B 0 s → K 0 S K 0 S |
| 264 | 1 | |c 31 July 2020 | |
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| 500 | |a Im Titel ist „0“ hochgestellt und das „S“ tiefgestellt | ||
| 500 | |a Mitglieder der LHCb Collaboration: R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, D. Gerick, J.P. Grabowski, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecná, B. Leverington, H. Malygina, J. Marks, S. Stemmle, U. Uwer, A. Zhelezov [und weitere] | ||
| 500 | |a Gesehen am 09.11.2020 | ||
| 520 | |a A measurement of the branching fraction of the decay B0s→K0SK0S is performed using proton-proton collision data corresponding to an integrated luminosity of 5 fb−1 collected by the LHCb experiment between 2011 and 2016. The branching fraction is determined to be B(B0s→K0SK0S)=[8.3±1.6(stat)±0.9(syst)±0.8(norm)±0.3(fs/fd)]×10−6, where the first uncertainty is statistical, the second is systematic, and the third and fourth are due to uncertainties on the branching fraction of the normalization mode B0→ϕK0S and the ratio of hadronization fractions fs/fd. This is the most precise measurement of this branching fraction to date. Furthermore, a measurement of the branching fraction of the decay B0→K0SK0S is performed relative to that of the B0s→K0SK0S channel, and is found to be B(B0→K0SK0S)B(B0s→K0SK0S)=[7.5±3.1(stat)±0.5(syst)±0.3(fs/fd)]×10−2. | ||
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