Abstract
It is sometimes argued that a virtue of pushing the supersymmetry breaking scale above 1 PeV is that no particular flavor structure is required in the soft sector in order to evade bounds on flavor-changing neutral currents. However, without flavor structure, suppressing generic Planck-suppressed contributions to proton decay requires even higher SUSY scales, of order 1011 (109) GeV for degenerate (mini-split) gauginos and scalars. With flavor structure, the question of whether proton decay or flavor symmetries are more constraining is model-dependent, but it straightforward to find simple models where both constraints are satisfied for much lower SUSY scales.
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ArXiv ePrint: 1308.0274
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Dine, M., Draper, P. & Shepherd, W. Proton decay at M pl and the scale of SUSY-breaking. J. High Energ. Phys. 2014, 27 (2014). https://doi.org/10.1007/JHEP02(2014)027
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DOI: https://doi.org/10.1007/JHEP02(2014)027