Minimal Flavour Violation and Beyond

TL;DR

This paper reviews the Minimal Flavour Violation hypothesis in quark physics, exploring its variations, testing methods via B decays, and implications in supersymmetric models, providing a comprehensive overview of flavour physics constraints.

Contribution

It offers a detailed review of MFV and its variants, including testing strategies and phenomenological implications in supersymmetric extensions of the Standard Model.

Findings

MFV constrains flavour-changing processes in B decays

Variations of MFV with smaller symmetry groups are explored

Implications of MFV in supersymmetric models are discussed

Abstract

We review the formulation of the Minimal Flavour Violation (MFV) hypothesis in the quark sector, as well as some "variations on a theme" based on smaller flavour symmetry groups and/or less minimal breaking terms. We also review how these hypotheses can be tested in B decays and by means of other flavour-physics observables. The phenomenological consequences of MFV are discussed both in general terms, employing a general effective theory approach, and in the specific context of the Minimal Supersymmetric extension of the SM.