Minimal Flavour Violation with hierarchical squark masses

Details Minimal Flavour Violation with hierarchical squark masses Minimal Flavour Violation with hierarchical squark masses

2010-11-02

arxiv.org/abs/1011.0730v2

JHEP 1012:070,2010; Erratum-ibid.1102:044,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 1 figure. v2: an equation corrected

Scientific paper

10.1007/JHEP12(2010)070 10.1007/

In a supersymmetric model with hierarchical squark masses we analyze a pattern of flavour symmetry breaking centered on the special role of the top Yukawa coupling and, by extension, of the full Yukawa couplings for the up-type quarks. For sufficiently heavy squarks of the first and second generation this leads to effective Minimal Flavour Violation of the Flavour Changing Neutral Current amplitudes. For this to happen we determine the bounds on the masses of the heavy squarks with QCD corrections taken into account, properly including previously neglected effects. We believe that the view presented in this paper altogether strengthens the case for hierarchical sfermions.

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