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arXiv · 1408.2165

Effects of supersymmetric threshold corrections on the Yukawa matrix unification

Mateusz Iskrzynski
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Abstract

We present an updated analysis of the Yukawa matrix unification within the renormalizable Minimal Supersymmetric Standard Model. It is assumed that the soft terms are non-universal but flavour-diagonal in the super-CKM basis at the GUT scale. Trilinear Higgs-squark-squark A-terms can generate large threshold corrections to the Yukawa matrix $\mathbf{Y}^d$ at the superpartner decoupling scale. In effect, the SU(5) boundary condition $\mathbf{Y}^d=\mathbf{Y}^{e\,T}$ at the GUT scale can be satisfied. However, such large trilinear terms make the usual Higgs vacuum metastable (though long-lived). We broaden previous studies by including results from the first LHC phase, notably the measurement of the Higgs particle mass, as well as a quantitative investigation of flavour observables.

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Mateusz Iskrzynski. 2015-02-11. Effects of supersymmetric threshold corrections on the Yukawa matrix unification. https://doi.org/10.1140/epjc%2Fs10052-015-3259-2

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