Study of B0 → D*−π+π−π+ and B0 → D*−K+π−π+ decays
Using proton-proton collision data collected by the LHCb experiment at √s=7 TeV, corresponding to an integrated luminosity of 1.0 fb−1, the ratio of branching fractions of the B0→D*−π+π−π+ decay relative to the B0→D*−π+ decay is measured to be B(B0→D*−π+π−π+)B(B0→D*−π+)=2.64±0.04(stat)±0.13(syst). T...
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
3 May 2013
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2013, Jahrgang: 87, Heft: 9, Pages: 1-10 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.87.092001 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.87.092001 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.87.092001 |
| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration) |
| Zusammenfassung: | Using proton-proton collision data collected by the LHCb experiment at √s=7 TeV, corresponding to an integrated luminosity of 1.0 fb−1, the ratio of branching fractions of the B0→D*−π+π−π+ decay relative to the B0→D*−π+ decay is measured to be B(B0→D*−π+π−π+)B(B0→D*−π+)=2.64±0.04(stat)±0.13(syst). The Cabibbo-suppressed decay B0→D*−K+π−π+ is observed for the first time, and the measured ratio of branching fractions is B(B0→D*−K+π−π+)B(B0→D*−π+π−π+)=(6.47±0.37(stat)±0.35(syst))×10−2. A search for orbital excitations of charm mesons contributing to the B0→D*−π+π−π+ final state is also performed, and the first observation of the B0→D̄1(2420)0π+π− decay is reported with the ratio of branching fractions B(B0→(D̄1(2420)0→D*−π+)π−π+)B(B0→D*−π+π−π+)=(2.04±0.42(stat)±0.22(syst))×10−2, where the numerator represents a product of the branching fractions B(B0→D̄1(2420)0π−π+) and B(D̄1(2420)0→D*−π+). |
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| Beschreibung: | Im Titel sind "0", "-" und "+" hochgestellt LHCb Collaboration: R. Aaij, A. Adametz, 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, 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 585 Gesehen am 23.04.2021 |
| Beschreibung: | Online Resource |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.87.092001 |