Strong CP and Low-energy Supersymmetry

Abstract

A spontaneously-broken CP provides an alternative to the KM mechanism for CP violation with the advantage that the strong CP problem is solved. We consider, for such a model with a new gauged U(1), the incorporation of low-energy supersymmetry and find the constraints on alignment and squark degeneracy. The conclusion is that although the $\bar{\theta }$ constraints are much less severe than in other generic schemes with supersymmetry breaking and spontaneous CP violation, one restriction remains stronger than needed in the MSSM for suppression of FCNC.

Title changed. Discussions added. Version to appear in Phys. Lett. B

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Cited by in corpus (4)

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• A Solution to the Strong CP Problem with Gauge-Mediated Supersymmetry Breaking