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arXiv · 1512.09063

Phenomenological Implications of an SU(5) x S4 x U(1) SUSY GUT of Flavour

Maria Dimou·Stephen F. King·Christoph Luhn
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Abstract

We discuss the characteristic low energy phenomenological implications of an SU(5) Supersymmetric Grand Unified Theory (SUSY GUT) whose flavour structure is controlled by the family symmetry S4 x U(1), which provides a good description of all quark and lepton masses, mixings as well as CP violation. Although the model closely mimics Minimal Flavour Violation (MFV) as shown in arXiv:1511.07886, here we focus on the differences. We first present numerical estimates of the low energy mass insertion parameters, including canonical normalisation and renormalisation group running, for well-defined ranges of SUSY parameters and compare the naive model expectations to the numerical scans and the experimental bounds. Our results are then used to estimate the model-specific predictions for Electric Dipole Moments (EDMs), Lepton Flavour Violation (LFV), B and K meson mixing as well as rare B decays. The largest observable deviations from MFV come from the LFV process mu --> e gamma and the electron EDM.

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Maria Dimou, Stephen F. King, Christoph Luhn. 2016-04-08. Phenomenological Implications of an SU(5) x S4 x U(1) SUSY GUT of Flavour. https://doi.org/10.1103/physrevd.93.075026

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