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Exploring CP Violation and Penguin Effects through $B^0_d \to D^+ D^-$ and $B^0_s \to D^+_s D^-_s$
The decay $B^0_d \to D^+ D^-$ offers an interesting probe of CP violation, but requires control of penguin effects, which can be done through $B^0_s \to D^+_s D^-_s$ by means of the $U$-spin flavour symmetry of strong interactions. Recently, the Belle collaboration reported indications of large CP v...
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Lenguaje: | eng |
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2007
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Acceso en línea: | https://dx.doi.org/10.1140/epjc/s10052-007-0341-4 http://cds.cern.ch/record/1038865 |