Observation of B+c → J/ψD+s and B+c → J/ψD*+s decays
The decays B+c→J/ψD+s and B+c→J/ψD*+s are observed for the first time using a dataset, corresponding to an integrated luminosity of 3 fb−1, collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of √s=7 and 8 TeV. The statistical significance for both signals is in e...
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
28 June 2013
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2013, Jahrgang: 87, Heft: 11, Pages: 1-10 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.87.112012 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.87.112012 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.87.112012 
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| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration) |
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| 245 | 1 | 0 | |a Observation of B+c → J/ψD+s and B+c → J/ψD*+s decays |c R. Aaij et al. (LHCb Collaboration) |
| 246 | 3 | 3 | |a Observation of B plus c → J/ psi D plus s and B plus c → J/ psi D* plus s decays |
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| 500 | |a Im Titel sind "+" hochgestellt und "c" und "s" jeweils tiefgestellt | ||
| 500 | |a LHCb Collaboration: R. Aaij, O. Aquines Gutierrez, S. Bachmann, A. Bien, J. Blouw, M. Britsch, A. Di Canto, F. Dordei, C. Färber, M. Fontana, E. Gersabeck, O. Grünberg, S. Hansmann-Menzemer, T. Hartmann, 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 589 | ||
| 500 | |a publisher error corrected 26 December 2013 | ||
| 500 | |a Gesehen am 20.04.2021 | ||
| 520 | |a The decays B+c→J/ψD+s and B+c→J/ψD*+s are observed for the first time using a dataset, corresponding to an integrated luminosity of 3 fb−1, collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of √s=7 and 8 TeV. The statistical significance for both signals is in excess of 9 standard deviations. The following ratios of branching fractions are measured to be B(B+c→J/ψD+s)B(B+c→J/ψπ+)=2.90±0.57±0.24, B(B+c→J/ψD*+s)B(B+c→J/ψD+s)=2.37±0.56±0.10, where the first uncertainties are statistical and the second systematic. The mass of the B+c meson is measured to be mB+c=6276.28±1.44(stat)±0.36(syst) MeV/c2, using the B+c→J/ψD+s decay mode. | ||
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