Observation of the decay B+c → B0sπ+
The result of a search for the decay B+c→B0sπ+ is presented, using the B0s→D−sπ+ and B0s→J/ψϕ channels. The analysis is based on a data sample of pp collisions collected with the LHCb detector, corresponding to an integrated luminosity of 1 fb−1 taken at a center-of-mass energy of 7 TeV, and 2 fb−1...
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
1 November 2013
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| In: |
Physical review letters
Year: 2013, Jahrgang: 111, Heft: 18, Pages: 1-9 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.111.181801 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.111.181801 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.111.181801 
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| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a Observation of the decay B+c → B0sπ+ |c R. Aaij et al. (LHCb Collaboration) |
| 246 | 3 | 3 | |a Observation of the decay B plus c → B zero s pi plus |
| 264 | 1 | |c 1 November 2013 | |
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| 500 | |a Im Titel sind "+" und "0" hochgestellt und "c" und "s" tiefgestellt | ||
| 500 | |a LHCb Collaboration: R. Aaij, O. Aquines Gutierrez, S. Bachmann, A. Bien, J. Blouw, M. Britsch, M. De Cian, A. Di Canto, F. Dordei, C. Färber, M. Fontana, E. Gersabeck, O. Grünberg, S. Hansmann-Menzemer, T. Hartmann, M. Heß, A. Jaeger, K. Kreplin, G. Krocker, B. Leverington, C. Linn, J. Marks, M. Meissner, T. Nikodem, D. Popov, M. Schmelling, P. Seyfert, S. Stahl, J. van Tilburg, U. Uwer, D. Volyanskyy, C. Voß, H. Voss, R. Waldi, S. Wandernoth, D. Wiedner, M. Zavertyaev, A. Zhelezov und weitere 618 | ||
| 500 | |a Gesehen am 22.04.2021 | ||
| 520 | |a The result of a search for the decay B+c→B0sπ+ is presented, using the B0s→D−sπ+ and B0s→J/ψϕ channels. The analysis is based on a data sample of pp collisions collected with the LHCb detector, corresponding to an integrated luminosity of 1 fb−1 taken at a center-of-mass energy of 7 TeV, and 2 fb−1 taken at 8 TeV. The decay B+c→B0sπ+ is observed with significance in excess of 5 standard deviations independently in both decay channels. The measured product of the ratio of cross sections and branching fraction is [σ(B+c)/σ(B0s)]×B(B+c→B0sπ+)=[2.37±0.31 (stat)±0.11 (syst)+0.17−0.13(τB+c)]×10−3, in the pseudorapidity range 2<η(B)<5, where the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the B+c lifetime. This is the first observation of a B meson decaying to another B meson via the weak interaction. | ||
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