Measurement of the B0s→μ+ μ- decay properties and search for the B0→μ+ μ- and B0s μ+ μ- γ decays
An improved measurement of the decay B0s→μ+μ− and searches for the decays B0→μ+μ− and B0s→μ+μ−γ are performed at the LHCb experiment using data collected in proton-proton collisions at √s=7, 8 and 13 TeV, corresponding to integrated luminosities of 1, 2 and 6 fb−1, respectively. The B0s→μ+μ− branchi...
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
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25 January 2022
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| In: |
Physical review
Year: 2022, Jahrgang: 105, Heft: 1, Pages: 1-34 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.105.012010 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.105.012010 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.105.012010 
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| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a Measurement of the B0s→μ+ μ- decay properties and search for the B0→μ+ μ- and B0s μ+ μ- γ decays |c R. Aaij et al. (LHCb Collaboration) |
| 246 | 3 | 3 | |a Measurement of the B 0 s → mu plus mu minus decay properties and search for the B 0 → mu plus mu minus and B 0 s mu plus mu minus gamma decays |
| 264 | 1 | |c 25 January 2022 | |
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| 500 | |a Gesehen am 25.03.2022 | ||
| 500 | |a R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, G. Frau, D. Gerick, J.P. Grabowski, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, B. Leverington, P. Li, H. Malygina, J. Marks, D.J. Unverzagt, U. Uwer, R. Waldi, C. Wang, L. Witola, A. Zhelezov (LHCb Collaboration) [und weitere Personen] | ||
| 520 | |a An improved measurement of the decay B0s→μ+μ− and searches for the decays B0→μ+μ− and B0s→μ+μ−γ are performed at the LHCb experiment using data collected in proton-proton collisions at √s=7, 8 and 13 TeV, corresponding to integrated luminosities of 1, 2 and 6 fb−1, respectively. The B0s→μ+μ− branching fraction and effective lifetime are measured to be B(B0s→μ+μ−)=(3.09+0.46+0.15−0.43−0.11)×10−9 and τ(B0s→μ+μ−)=(2.07±0.29±0.03) ps, respectively, where the uncertainties include both statistical and systematic contributions. No significant signal for B0→μ+μ− and B0s→μ+μ−γ decays is found and the upper limits B(B0→μ+μ−)<2.6×10−10 and B(B0s→μ+μ−γ)<2.0×10−9 at 95% confidence level are determined, where the latter is limited to the range mμμ>4.9 GeV/c2. Additionally, the ratio between the B0→μ+μ− and B0s→μ+μ− branching fractions is measured to be Rμ+μ−<0.095 at 95% confidence level. The results are in agreement with the Standard Model predictions. | ||
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