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- W1878693538 abstract "The decays B 0 → D − D + and B 0 → D − D + probe the CP-violating mixing phases ϕ d and ϕ s , respectively. The theoretical uncertainty of the corresponding determinations is limited by contributions from penguin topologies, which can be included with the help of the U-spin symmetry of the strong interaction. We analyse the currently available data for B , 0 → D , − D , + decays and those with similar dynamics to constrain the involved non-perturbative parameters. Using further information from semileptonic B 0 → D − ℓ + ν ℓ decays, we perform a test of the factorisation approximation and take non-factorisable SU(3)-breaking corrections into account. The branching ratios of the B 0 → D − D + , B 0 → D − D + and B 0 → D − D + , B 0 → D − D + decays show an interesting pattern which can be accommodated through significantly enhanced exchange and penguin annihilation topologies. This feature is also supported by data for the B 0 → D − D + channel. Moreover, there are indications of potentially enhanced penguin contributions in the B 0 → D − D + and B 0 → D − D + decays, which would make it mandatory to control these effects in the future measurements of ϕ d and ϕ s . We discuss scenarios for high-precision measurements in the era of Belle II and the LHCb upgrade." @default.
- W1878693538 created "2016-06-24" @default.
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- W1878693538 date "2015-07-01" @default.
- W1878693538 modified "2023-09-27" @default.
- W1878693538 title "Anatomy of B → D D ¯ $$ Bto Doverline{D} $$ decays" @default.
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- W1878693538 doi "https://doi.org/10.1007/jhep07(2015)108" @default.
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