First observation of Bs0→J/ψf0(980) decays
Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decay Bs0→J/ψf0(980) is observed. This CP eigenstate mode could be used to measure mixing-induced CP violation in the Bs0 system. Using a fit to the π+π− mass spectrum with inter...
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| Hauptverfasser: | , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
5 March 2011
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| In: |
Physics letters
Year: 2011, Jahrgang: 698, Heft: 2, Pages: 115-122 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2011.03.006 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.physletb.2011.03.006 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0370269311002395 
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| Verfasserangaben: | LHCb Collaboration* |
MARC
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| 245 | 1 | 0 | |a First observation of Bs0→J/ψf0(980) decays |c LHCb Collaboration* |
| 246 | 3 | 3 | |a First observation of B s 0 → J / psi f 0 (980) decays |
| 264 | 1 | |c 5 March 2011 | |
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| 500 | |a *LHCb Collaboration: R. Aaij, S. Bachmann, M. Deissenroth, F. Eisele, C. Färber, S. Hansmann-Menzemer, K. Holubyev, G. Krocker, C. Linn, J. Marks, M. Meissner, U. Uwer, S. Wandernoth, D. Wiedner, A. Zhelezov [und 532 weitere Personen] | ||
| 500 | |a Im Titel ist der Buchstabe s tiefgestellt | ||
| 500 | |a Im Titel ist die Zahl 0 im Ausdruck "Bs0" hochgestellt sowie im Ausdruck "J/ψf0(980)" tiefgestellt | ||
| 500 | |a Gesehen am 16.02.2022 | ||
| 520 | |a Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decay Bs0→J/ψf0(980) is observed. This CP eigenstate mode could be used to measure mixing-induced CP violation in the Bs0 system. Using a fit to the π+π− mass spectrum with interfering resonances gives Rf0/ϕ≡Γ(Bs0→J/ψf0,f0→π+π−)Γ(Bs0→J/ψϕ,ϕ→K+K−)=0.252−0.032−0.033+0.046+0.027. In the interval ±90 MeV around 980 MeV, corresponding to approximately two full f0 widths we also find R′≡Γ(Bs0→J/ψπ+π−,|m(π+π−)−980 MeV|<90 MeV)Γ(Bs0→J/ψϕ,ϕ→K+K−)=0.162±0.022±0.016, where in both cases the uncertainties are statistical and systematic, respectively. | ||
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