Precision measurement of CP violation in the penguin-mediated decay B0s → ϕϕ
A flavor-tagged time-dependent angular analysis of the decay 𝐵0𝑠→𝜙𝜙 is performed using 𝑝𝑝 collision data collected by the LHCb experiment at the center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb−1. The 𝐶𝑃-violating phase and direct 𝐶𝑃-violation parameter are meas...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
23 October 2023
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| In: |
Physical review letters
Year: 2023, Jahrgang: 131, Heft: 17, Pages: 1-12 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.131.171802 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevLett.131.171802 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.131.171802 
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| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a Precision measurement of CP violation in the penguin-mediated decay B0s → ϕϕ |c R. Aaij et al. (LHCb Collaboration) |
| 246 | 3 | 3 | |a Precision measurement of CP violation in the penguin-mediated decay B 0 s → phi phi |
| 264 | 1 | |c 23 October 2023 | |
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| 500 | |a Im Titel ist s tiefgestellt, die 0 hochgestellt | ||
| 500 | |a Gesehen am 03.07.2024 | ||
| 500 | |a LHCb Collaboration: R. Aaij, S. Bachmann, M. Borsato, R. Caspary, G. Frau, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, J. Kubat, B. Leverington, J. Marks, M.P. Morgenthaler, R. Skuza, G. Tuci, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, Y. Zhao, A. Zhelezov [und 141 weitere] | ||
| 520 | |a A flavor-tagged time-dependent angular analysis of the decay 0→ is performed using collision data collected by the LHCb experiment at the center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb−1. The -violating phase and direct -violation parameter are measured to be ¯=−0.042±0.075±0.009 rad and ||=1.004±0.030±0.009, respectively, assuming the same values for all polarization states of the system. In these results, the first uncertainties are statistical and the second systematic. These parameters are also determined separately for each polarization state, showing no evidence for polarization dependence. The results are combined with previous LHCb measurements using collisions at center-of-mass energies of 7 and 8 TeV, yielding ¯=−0.074±0.069 rad and ||=1.009±0.030. This is the most precise study of time-dependent violation in a penguin-dominated meson decay. The results are consistent with symmetry and with the standard model predictions. | ||
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