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RGE behavior of SUSY with a U(2)(3) symmetry

AuthorsBlankenburg, Gianluca; Jones Pérez, Joel
KeywordsMinimal Flavor Violation
Even Higgs Bosons
Standard Model
Supersymmetric Theories
Issue Date1-Feb-2013
CitationEuropean Physical Journal C (73): 2 (2013)
AbstractThe first LHC results seem to disfavor, from the point of view of naturalness, any constrained MSSM realization with universal conditions at the SUSY-breaking scale. A more motivated scenario is given by split-family SUSY, in which the first two generations of squarks are heavy, compatible with a U(2)(3) flavor symmetry. We consider this flavor symmetry to be broken at a very high scale and study the consequences at low energies through its RGE evolution. Initial conditions compatible with a split scenario are found, and the preservation of correlations from minimal U(2)(3) breaking are checked. The various chiral operators in Delta F = 2 processes are analyzed, and we show that, due to LHC gluino bounds, the (LL)(RR) operators cannot always be neglected. Finally, we also study a possible extension of the U(2)(3) model compatible with the lepton sector
Publisher version (URL)http://dx.doi.org/10.1140/epjc/s10052-013-2289-x
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