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Examining the cancellation mechanism of neutron EDM in a model with dilaton-dominated susy breaking

S. M. Barr·Shaaban Khalil
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Abstract

We examine the cancellation mechanism between the different contributions to the electric dipole moment of the neutron in a model with dilaton-dominated SUSY breaking. We find these accidental cancellations occur at few points in parameter space. For a wide region of this space we must constrain the phase of $μ$ to be of order $10^{-1}$ and have the phases of $A$ and $μ$ strongly correlated in order to have small neutron EDM. Moreover, we consider the indirect CP violation parameter $ε$ in this region where the electric dipole moment is less than the experimental limit and find that we can generate $ε$ of order $10^{-6}$.

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S. M. Barr, Shaaban Khalil. 1999-10-12. Examining the cancellation mechanism of neutron EDM in a model with dilaton-dominated susy breaking. https://doi.org/10.1103/physrevd.61.035005

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