CP violation as a probe of flavor origin in Supersymmetry

TL;DR

This paper investigates how CP violation measurements can reveal the flavor structure of supersymmetry breaking, showing that without new flavor sources, supersymmetry cannot significantly affect certain CP asymmetries.

Contribution

It proves that in minimal supersymmetric models without new flavor structures, supersymmetry cannot produce large CP violation effects in meson systems.

Findings

Supersymmetry contributions to CP asymmetries are negligible without new flavor sources.

Observation of large CP asymmetries would suggest non-flavor blind supersymmetry breaking.

The analysis constrains the flavor structure of supersymmetry breaking mechanisms.

Abstract

We address the question of the relation between supersymmetry breaking and the origin of flavor in the context of CP violating phenomena. We prove that, in the absence of the Cabibbo-Kobayashi-Maskawa phase, a general Minimal Supersymmetric Standard Model with all possible phases in the soft-breaking terms, but no new flavor structure beyond the usual Yukawa matrices, can never give a sizeable contribution to $\epsilon_K$, $\epsilon^\prime/\epsilon$ or hadronic $B^0$ CP asymmetries. Observation of supersymmetric contributions to CP asymmetries in B decays would hint at a non-flavor blind mechanism of supersymmetry breaking.