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Constraint from D - anti-D Mixing in Left-Right Symmetric Models · Around

2007

Constraint from D - anti-D Mixing in Left-Right Symmetric Models

Dutta, Bhaskar, Mimura, Yukihiro

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We study the constraint arising from the recently observed D - anti-D mixing in the context of supersymmetric models with left-right symmetry.

In these models, the supersymmetric contributions in the mixing amplitudes of D - anti-D, K - anti-K and B - anti-B are all correlated.
We compare the constraint from the D - anti-D mixing with the K - anti-K mixing and find that the D - anti-D mixing constrains the maximal supersymmetric contribution to the B_s - anti-B_s mixing amplitude.
The maximal supersymmetric contribution can allow a large CP phase of B_s - anti-B_s mixing which agrees with the recent measurement of the CP asymmetry of B_s -> J/psi phi decay.

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