Flavor Physics Constraints for Physics Beyond the Standard Model

TL;DR

Recent advances in flavor physics measurements have significantly constrained new physics models beyond the Standard Model, especially regarding flavor-changing processes and CP violation, with no evidence of new physics yet.

Contribution

This paper reviews current flavor physics constraints and discusses future prospects for understanding new physics flavor structures beyond the Standard Model.

Findings

No evidence for new physics from flavor experiments

Strong constraints on high-scale new physics flavor structures

Future measurements may further refine these constraints

Abstract

In the last decade, huge progress in experimentally measuring and theoretically understanding flavor physics has been achieved. In particular, the accuracy in the determination of the CKM elements has been greatly improved, and a large number of flavor changing neutral current processes, involving b -> d, b -> s and c -> u transitions, and of CP violating asymmetries, have been measured. No evidence for new physics has been established. Consequently, strong constraints on new physics at high scale apply. In particular, the flavor structure of new physics at the TeV scale is strongly constrained. We review these constraints and we discuss which are the future prospects to better understand the flavor structure of physics beyond the Standard Model.