Measurement of the CP-violating phase β in B0→J/ψπ+π− decays and limits on penguin effects
Time-dependent CP violation is measured in the B0→J/ψπ+π− channel for each π+π− resonant final state using data collected with an integrated luminosity of 3.0 fb−1 in pp collisions using the LHCb detector. The final state with the largest rate, J/ψρ0(770), is used to measure the CP-violating angle 2...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
13 January 2015
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| In: |
Physics letters
Year: 2015, Jahrgang: 742, Pages: 38-49 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2015.01.008 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.physletb.2015.01.008 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0370269315000106 |
| Verfasserangaben: | LHCb collaboration |
MARC
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| 245 | 1 | 0 | |a Measurement of the CP-violating phase β in B0→J/ψπ+π− decays and limits on penguin effects |c LHCb collaboration |
| 246 | 3 | 3 | |a Measurement of the CP-violating phase beta in B 0 →J / psi pi + pi − decays and limits on penguin effects |
| 264 | 1 | |c 13 January 2015 | |
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| 500 | |a Im Titel sind "+", "-" und "0" hochgestellt | ||
| 500 | |a LHCb Collaboration: R. Aaij, O. Aquines Gutierrez, S. Bachmann, A. Bien, J. Blouw, M. Britsch, A. Comerma-Montells, M. De Cian, F. Dordei, S. Esen, C. Färber, M. Fontana, E. Gersabeck, L. Grillo, X. Han, S. Hansmann-Menzemer, A. Jaeger, M. Kolpin, K. Kreplin, G. Krocker, B. Leverington, J. Marks, M. Meissner, M. Neuner, T. Nikodem, M. Schmelling, P. Seyfert, M. Stahl, S. Stahl, U. Uwer, M. Vesterinen, S. Wandernoth, D. Wiedner, A. Zhelezov [und 666 weitere] | ||
| 500 | |a Gesehen am 07.04.2021 | ||
| 520 | |a Time-dependent CP violation is measured in the B0→J/ψπ+π− channel for each π+π− resonant final state using data collected with an integrated luminosity of 3.0 fb−1 in pp collisions using the LHCb detector. The final state with the largest rate, J/ψρ0(770), is used to measure the CP-violating angle 2βeff to be (41.7±9.6−6.3+2.8)°. This result can be used to limit the size of penguin amplitude contributions to CP violation measurements in, for example, Bs0→J/ψϕ decays. Assuming approximate SU(3) flavour symmetry and neglecting higher order diagrams, the shift in the CP-violating phase ϕs is limited to be within the interval [−1.05°,+1.18°] at 95% confidence level. Changes to the limit due to SU(3) symmetry breaking effects are also discussed. | ||
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| 776 | 0 | 8 | |i Erscheint auch als |n Druck-Ausgabe |a LHCb Collaboration |t Measurement of the CP-violating phase β in B0→J/ψπ+π− decays and limits on penguin effects |d 2015 |w (DE-627)82223162X |w (DE-576)9822231628 |
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| 856 | 4 | 0 | |u https://www.sciencedirect.com/science/article/pii/S0370269315000106 |x Verlag |z lizenzpflichtig |3 Volltext |
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