Towards Precise Determinations of the CKM Matrix without Hadronic Uncertainties*
نویسنده
چکیده
We illustrate how the measurements of the CP asymmetries in B d,s-decays together with a measurement of Br(KL → πνν̄) or Br(K → πνν̄) and the known value of | Vus | can determine all elements of the Cabibbo-Kobayashi-Maskawamatrix essentially without any hadronic uncertainties. An analysis using the ratio xd/xs of Bd − B̄d to Bs − B̄s mixings is also presented. 1. Setting the Scene An important target of particle physics is the determination of the unitary 3× 3 Cabibbo-KobayashiMaskawa matrix which parametrizes the charged current interactions of quarks: J μ = (ū, c̄, t̄)Lγμ Vud Vus Vub Vcd Vcs Vcb Vtd Vts Vtb
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