CP violation in supersymmetric model with non-degenerate A-terms

TL;DR

This paper investigates how non-universal A-terms in string-inspired supersymmetric models influence CP violation, potentially explaining observed phenomena in kaon physics without conflicting with neutron electric dipole moment constraints.

Contribution

It demonstrates that non-universal trilinear couplings significantly impact CP violating processes in supersymmetry, providing new sources of CP violation.

Findings

Non-universality affects all CP violating processes.

Supersymmetric CP sources can explain kaon CP phenomena.

Models remain consistent with neutron EDM bounds.

Abstract

We study the CP phases of the soft supersymmetry breaking terms in string-inspired models with non-universal trilinear couplings. We show that such non-universality plays an important role on all CP violating processes. In particular these new supersymmetric sources of CP violation may significantly contribute to the observed CP phenomena in kaon physics while respecting the severe bound on the electric dipole moment of the neutron.