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Testing New Indirect CP Violation
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If new CP violating physics contributes to neutral meson mixing, but its contribution to CP violation in decay amplitudes is negligible, then there is a model independent relation between four (generally independent) observables related to the mixing: The mass splitting (x), the width splitting (y), the CP violation in mixing (1-|q/p|), and the CP violation in the interference of decays with and without mixing (\phi). For the four neutral meson systems, this relation can be written in a simple approximate form: y tan\phi ~ x(|q/p|-1). This relation is already tested (successfully) in the neutral K system. It provides predictions for the B_s and D systems. The success or failure of these relations will probe the physics that is responsible for the CP violation.
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Cited by 1 Pith paper
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CP asymmetries in $D\to K^0_{S,L}P$ and $D\to K^0_{S,L}V$ decays
Derives CP asymmetry formulas for D to KS,L P/V decays with mixing effects, fits hadronic parameters from branching fractions via topological diagrams, predicts O(10^{-3}) effects in several modes and reduces tension ...
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