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arXiv · 0904.0305

Testing New Indirect CP Violation

Yuval Grossman·Yosef Nir·Gilad Perez
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Abstract

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 (ϕ). For the four neutral meson systems, this relation can be written in a simple approximate form: y tanϕ~ 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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Yuval Grossman, Yosef Nir, Gilad Perez. 2009-04-19. Testing New Indirect CP Violation. https://doi.org/10.1103/physrevlett.103.071602

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