Flavor in Supersymmetry: Anarchy versus Structure

TL;DR

This paper investigates how future high-precision flavor experiments can distinguish between different flavor structures in supersymmetric models, focusing on gauge- and gravity-mediated contributions and their implications for flavor and CP violation.

Contribution

It compares the effects of anarchical versus structured gravity-mediated contributions in supersymmetry, providing a method to infer flavor structure from experimental data.

Findings

Flavor and CP violation patterns differ between anarchical and structured models.

Combining meson mixing and electric dipole moment data can reveal the underlying flavor structure.

Structured models show distinctive signatures in flavor-changing processes.

Abstract

Future high-precision flavor experiments may discover a pattern of deviations from the standard model predictions for flavor-changing neutral current processes. One of the interesting questions that can be answered then will be whether the flavor structure of the new physics is related to that of the standard model or not. We analyze this aspect of flavor physics within a specific framework: supersymmetric models where the soft breaking terms are dominated by gauge-mediation but get non-negligible contributions from gravity-mediation. We compare the possible patterns of non-minimally flavor-violating effects that arise if the gravity-mediated contributions are anarchical vs. the case that they are structured by a Froggatt-Nielsen symmetry. We show that combining information on flavor and CP violation from meson mixing and electric dipole moments is indicative for the flavor structure of gravity-mediation.