Implications of the measurements of B_s - B_s bar mixing on SUSY models

TL;DR

This paper analyzes how recent measurements of B_s - B_s bar mixing constrain supersymmetry models, impacting their flavor structure and guiding future experimental tests of the Standard Model and SUSY theories.

Contribution

It derives new constraints on SUSY flavor parameters from B_s mixing data and discusses their implications for SUSY breaking mechanisms and flavor models.

Findings

Some SUSY flavor models are excluded or disfavored.

Constraints on mass insertion parameters are derived.

Future tests involve CP asymmetries in B decays.

Abstract

We derive constraints on the mass insertion parameters from the recent measurements of B_s - B_s bar mixing, and discuss their implications on SUSY breaking mediation mechanisms and SUSY flavor models. Some SUSY flavor models are already excluded or disfavored by B_s - B_s bar mixing. We also discuss how to test the SM and SUSY models in the future experiments, by studying other CP violating observables related to b -> s transition, such as the time-dependent CP asymmetry in B -> phi K_S and the direct CP asymmetry in B -> X_s gamma.