Babar : sin 2$\beta$ with charm
Résumé
We present measurements of time dependent CP asymmetries of neutral B decays to several charm and charmonium final states. Data have been collected with the BABAR detector at the PEP-II storage ring at the Stanford Linear Accelerator Center. In the absence of penguin contribution, the Standard Model predicts the time-dependent CP asymmetry parameters S and C are to be−η_CP sin(2β) and 0,respectively.
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