Sunday, August 4, 2013

1308.0274 (Michael Dine et al.)

Proton Decay at $M_{pl}$ and the Scale of SUSY-Breaking    [PDF]

Michael Dine, Patrick Draper, William Shepherd
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 $10^{11}$ ($10^9$) GeV for degenerate (mini-split) gauginos and scalars.
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