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Evidence for the decays B0 → D(∗)0ϕ and updated measurements of the branching fractions of the B0s → D(∗)0ϕ decays

Evidence for the decays B0 → D0ϕ and B0 → D∗0ϕ is reported with a significance of 3.6 σ and 4.3 σ, respectively. The analysis employs pp collision data at centre-of-mass energies √s = 7, 8 and 13 TeV collected by the LHCb detector and corresponding to an integrated luminosity of 9 fb−1. In these res...

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Main Authors: Aaij, Roel (Author) , Bachmann, Sebastian (Author) , Borsato, Martino (Author) , Caspary, Rowina (Author) , De Cian, Michel (Author) , Frau, Giulia (Author) , Günther, Paul André (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Hu, Jiangqiao (Author) , Kubat, Jakub (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Morgenthaler, Maurice Pierre (Author) , Skuza, Raphael (Author) , Tuci, Giulia (Author) , Unverzagt, Daniel Joachim (Author) , Uwer, Ulrich (Author) , Wang, Chishuai (Author) , Witola, Lukas (Author) , Zhao, Ya (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 20 October 2023
In: Journal of high energy physics
Year: 2023, Issue: 10, Pages: 1-25
ISSN:1029-8479
DOI:10.1007/JHEP10(2023)123
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP10(2023)123
Resolving-System, kostenfrei, Volltext: https://link.springer.com/article/10.1007/JHEP10(2023)123
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Author Notes:the LHCb collaboration
Description
Summary:Evidence for the decays B0 → D0ϕ and B0 → D∗0ϕ is reported with a significance of 3.6 σ and 4.3 σ, respectively. The analysis employs pp collision data at centre-of-mass energies √s = 7, 8 and 13 TeV collected by the LHCb detector and corresponding to an integrated luminosity of 9 fb−1. In these results, the first uncertainty is statistical, the second systematic, and the third is related to the branching fraction of the B0 → D0K+K− decay, used for normalisation. By combining the branching fractions of the decays B0 → D(∗)0ϕ and B0 → D(∗)0ω, the ω-ϕ mixing angle δ is constrained to be tan2 δ = (3.6 ± 0.7 ± 0.4) × 10−3, where the first uncertainty is statistical and the second systematic. An updated measurement of the branching fractions of the B0 s → D(∗)0ϕ decays, which can be used to determine the CKM angle γ.
Item Description:Gesehen am 05.07.2024
Im Titel sind 0 und (*) hochgestellt, das s tiefgestellt
The LHCb Collaboration: R. Aaij, S. Bachmann, M. Borsato, R. Caspary, M. De Cian, 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 1043 weitere]
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP10(2023)123

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