PROBING CKM PARAMETERS THROUGH UNITARITY, εK AND ΔMBd,s
نویسندگان
چکیده
منابع مشابه
Probing CKM parameters through unitarity, εK and ∆mB d,s
A recently carried out unitarity based analysis [1, 2] involving the evaluation of Jarlskog’s rephasing invariant parameter J as well as the evaluation of the angles α, β and γ of the unitarity triangle is extended to include the effects of K − K̄ as well as B − B̄ mixings. The present analysis attempts to evaluate CP violating phase δ, |Vtd| and the angles α, β and γ by invoking the constraints ...
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The Cabibbo-Kobayashi-Maskawa (CKM) [1,2] three-generation quark mixing matrix written in terms of the Wolfen-stein parameters (λ, A, ρ, η) [3] nicely illustrates the orthonor-mality constraint of unitarity and central role played by λ. V CKM = ⎛ ⎝ V ud V us V ub V cd V cs V cb V td V ts V tb ⎞ ⎠ = ⎛ ⎝ 1 − λ 2 /2 λ Aλ 3 (ρ − iη) −λ 1 − λ 2 /2 Aλ 2 Aλ 3 (1 − ρ − iη) −Aλ 2 1 ⎞ ⎠ +O(λ 4). (1) That...
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Three generation CKM Unitarity in the Standard Model predicts |Vud |2 + |Vus| + |Vub| = 1. Nuclear, K`3 and b → u decays currently give |Vud |2 + |Vus| + |Vub| = 0.9991(8). The good agreement between theory and experiment can be used to constrain “new physics” effects at the tree and quantum loop level. Examples considered are: exotic muon decays, heavy quark or lepton mixing, high scale induce...
متن کامل3 decays and CKM unitarity *
We present a detailed numerical study of the Ke3 decays to O(p6, (md −mu)p, ep) in chiral perturbation theory with virtual photons and leptons. We describe the extraction of the CKM matrix element |Vus| from the experimental Ke3 decay parameters. We propose a consistency check of the K + e3 and K 0 e3 data that is largely insensitive to the dominating theoretical uncertainties, in particular th...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2002
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x02009783