Branching fraction measurements of the rare B0s→ϕμ+μ− and B0s→f′2(1525)μ+μ− decays
The branching fraction of the rare B0s→ϕμ+μ− decay is measured using data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 6 fb−1, respectively. The branching fraction is reported in intervals of q2, the square of...
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
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5 October 2021
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| In: |
Physical review letters
Year: 2021, Jahrgang: 127, Heft: 15, Pages: 1-11 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.127.151801 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.127.151801 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.127.151801 
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| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a Branching fraction measurements of the rare B0s→ϕμ+μ− and B0s→f′2(1525)μ+μ− decays |c R. Aaij et al. (LHCb Collaboration) |
| 246 | 3 | 3 | |a Branching fraction measurements of the rare B zero s→ phi mu plus mu minus and B zero s→f′2(1525) mu plus mu minus decays |
| 264 | 1 | |c 5 October 2021 | |
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| 500 | |a Im Titel sind "0", "+" und "-" hochgestellt, "s" und "2" in f′2 tiefgestellt | ||
| 500 | |a LHCb collaboration: 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, N. Meinert, A.B. Morris, S. Neubert, M. Schmelling, D.J. Unverzagt, U. Uwer, H. Viemann, R. Waldi, C. Wang, L. Witola, M. Zavertyaev, A. Zhelezov, und weitere 941 | ||
| 500 | |a Gesehen am 12.11.2021 | ||
| 520 | |a The branching fraction of the rare B0s→ϕμ+μ− decay is measured using data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 6 fb−1, respectively. The branching fraction is reported in intervals of q2, the square of the dimuon invariant mass. In the q2 region between 1.1 and 6.0 GeV2/c4, the measurement is found to lie 3.6 standard deviations below a standard model prediction based on a combination of light cone sum rule and lattice QCD calculations. In addition, the first observation of the rare B0s→f′2(1525)μ+μ− decay is reported with a statistical significance of 9 standard deviations and its branching fraction is determined. | ||
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