Examining the Cancellation Mechanism of Neutron Edm in a Model with Dilaton-dominated Susy Breaking

We examine the cancellation mechanism between the different contributions to the electric dipole moment of the neutron in a model with dilatondominated 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 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. Date: February 1, 2008.