منابع مشابه
CP - violation from Noncommutative Geometry ∗
If the geometry of space-time is noncommutative, i.e. [x µ , x ν ] = iθ µν , then noncommutative CP violating effects may be manifest at low energies. For a noncommutative scale Λ ≡ θ −1/2 ≤ 2 T eV , CP violation from noncommutative geometry is comparable to that from the Standard Model (SM) alone: the noncommutative contributions to ǫ and ǫ ′ /ǫ in the K-system, and to sin 2β in the B-system, ...
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Three possibilities for the origin of CP violation are discussed: (1) the Standard Model in which all CP violation is due to one parameter in the CKM matrix, (2) the superweak model in which all CP violation is due to new physics and (3) the Standard Model plus new physics. A major goal of B physics is to distinguish these possibilities. CP violation implies time reversal violation (TRV) but di...
متن کاملCp Violation*
Predictions for CP violation in the three generation Standard Model are reviewed based on what is known about the Cabibbo-Kobayashi-Maskawa matrix. Application to the I(and B meson systems are emphasized.
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Several pieces of direct and indirect evidence now suggest that the KobayashiMaskawa mechanism plays a distinguished role for CP violation at the electroweak scale. This talk provides a general overview of CP violation in its various contexts, emphasizing CP violation in flavour-violating interactions, such as due to the Kobayashi-Maskawa mechanism. I then review a few recent theoretical develo...
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We present some recent BABAR measurements of the magnitudes of the elements Vub and Vcb of the Cabibbo-Kobayashi-Maskawa quark-mixing matrix, and of the angles α and γ of the unitary triangle of the standard model of the electroweak interactions. Most of the measurements presented here are based on the full BABAR Υ(4S) dataset, consisting of about 467 × 106 BB pairs. Invited talk presented at t...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2014
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2014.03.023