New Developments in Measurements of Cp Violation
نویسنده
چکیده
With the discovery of CP violation in the decays of neutral B mesons 1 and the precise measurement 2 of the angle β of the Cabibbo-Kobayashi-Maskawa (CKM) Unitarity Triangle 3, the experimental focus at the B factories has shifted towards over-constraining the unitarity triangle through precise measurements of |Vub| and the angles α and γ, and towards measurements of CP asymmetry in the charmless modes, that are sensitive to contributions from new physics. The angle γ is arg(−V ∗ ubVud/V ∗ cbVcd) where Vij are CKM matrix elements. Several methods have been suggested and used to measure γ 4, but they all require large samples of B mesons not yet available in order to reduce uncertainties. Here we present the latest alternative methods explored by the BABAR experiment to measure the Unitarity Triangle (UT) angle γ.
منابع مشابه
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