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arxiv: 1110.6391 · v1 · pith:UEW6GAHWnew · submitted 2011-10-28 · ✦ hep-ph

U(2) and MFV in Supersymmetry

classification ✦ hep-ph
keywords mixingactingagreementamplitudesbrokencasecorrelationcurrent
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A suitably broken U(2)^3 symmetry acting on the first two generations of quarks and squarks is studied as a natural generalization of the Minimal Flavour Violation principle to the case of a hierarchical squark spectrum. A definite correlation emerges between the meson mixing amplitudes in the K, B(d) and B(s) systems which can resolve the current tension in CKM fits, while predicting a moderate enhancement of the B(s) mixing phase, in agreement with recent data from the LHCb experiment, as well as sbottom and gluino masses in the TeV region.

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