Search for the rare decays B0S → e+ e- and B0 → e+ e-
A search for the decays B0s→e+e− and B0→e+e− is performed using data collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 2 fb−1, respectively. No signal is observed. Assuming no contribut...
Gespeichert in:
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
27 May 2020
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| In: |
Physical review letters
Year: 2020, Jahrgang: 124, Heft: 21 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.124.211802 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.124.211802 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.124.211802 
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| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration)* |
MARC
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| 245 | 1 | 0 | |a Search for the rare decays B0S → e+ e- and B0 → e+ e- |c R. Aaij et al. (LHCb Collaboration)* |
| 246 | 3 | 3 | |a Search for the rare decays B zero S into e plus e minus and B zero into e plus e minus |
| 264 | 1 | |c 27 May 2020 | |
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| 500 | |a Im Titel ist die Ziffer "0" hochgestellt und der Buchstabe S tiefgestellt | ||
| 500 | |a Im Titel sind die Plus- und Minuszeichen hochgestellt | ||
| 500 | |a LHCb Collaboration*: Roel Aaij, Flavio Archilli, Sebastian Bachmann, Daniel Berninghoff, Martino Borsato, David Gerick, Jascha Grabowski, Paul André Günther, Xiaoxue Han, Stephanie Hansmann-Menzemer, Jiangqiao Hu, Renata Kopecná, Blake Leverington, Hanna Malygina, Jörg Marks, Ulrich Uwer, Lukas Witola, Alexey Zhelezov [und 890 weitere] | ||
| 500 | |a Gesehen am 30.09.2020 | ||
| 520 | |a A search for the decays B0s→e+e− and B0→e+e− is performed using data collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 2 fb−1, respectively. No signal is observed. Assuming no contribution from B0→e+e− decays, an upper limit on the branching fraction B(B0s→e+e−)<9.4(11.2)×10−9 is obtained at 90(95)% confidence level. If no B0s→e+e− contribution is assumed, a limit of B(B0→e+e−)<2.5(3.0)×10−9 is determined at 90(95)% confidence level. These upper limits are more than one order of magnitude lower than the previous values. | ||
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| SRT | |a LHCBCOLLABSEARCHFORT2720 | ||