β(φ₁) from B Decays to Charm
classification
✦ hep-ph
keywords
betameasurementanglecharmdecaysallowambiguitiesdesirable
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The measurement of $\sin {2\beta}$ from $B_d \to J/\psi K_s$ does not resolve the discrete ambiguities in the angle $\beta$. A measurement of $\cos {2\beta}$ is therefore desirable.This talk is about measuring the CKM angle $\beta(\phi_1)$ from various B decays to charm final states which also allow us a measurement of $\cos {2\beta}$.
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